Oyster shell
Clams, also known as round clams, hard shell clams, or quails, are edible marine bivalve mollusks native to the east coasts of North and Central America, from Prince Edward Island to the Yucatan Peninsula. It is one of many unrelated edible bivalves, commonly referred to as clams in the United States. Hard clams are common throughout New England, northern Canada, and the East Coast of the United States to Florida; But they are particularly abundant between Cape Cod and New Jersey, where sowing and harvesting them is an important form of aquaculture business. For example, this species is an important member of the benthic community of suspended feeding animals in the lower Chesapeake Bay.
Headless Spiny Guinea Pig Skull
The tailless spiny guinea pig is a type of terrestrial medium to large herbivorous rodent, and is a member of the only genus in the tailless spiny porpoise family, the tailless spiny porpoise genus. Tailless spiny guinea pigs are distributed in Central and South America, resembling spiny porpoises in appearance, but with a larger snout and light colored spots and horizontal lines on the body. The tailless spiny guinea pig has a length of 50-77 centimeters, excluding a short tail of 13-23 centimeters. It weighs 6-14 kilograms and is the sixth largest rodent in the world. Similar to guinea pigs, they have square heads, small ears, sides with spotted and striped patterns, and almost invisible tails.
Large navel parrot shell
Nautilus is a general term for marine mollusks in the family Nautidae, belonging to the order Cephalopoda. There are 2 genera and 6 species, with curled pearl like shells that can grow up to 26 centimeters in size, but adult parrots generally do not exceed 20 centimeters. Usually only 16 centimeters. The shell is composed of many chambers, and the outer shell is located inside the shell. There is a diaphragm separating each chamber; Two pairs of gills; 63-94 wrists, but without suction cups. The shell is thin and light, coiled in a spiral shape, with a white or milky white surface. The growth lines radiate from the navel of the shell, smooth and fine, mostly reddish brown in color. The entire spiral shell is smooth like a disc, resembling a parrot's beak, hence the name "Nautilus".
Yi Beike
Mussels are marine organisms in the family Mytilidae of the phylum Mollusca. The shell is wedge-shaped, with a black brown surface, smooth and glossy; The growth pattern is fine and dense, and the inner surface of the shell is gray blue in color. The shell edge has a narrow edge where the outer skin is rolled in, and there are obvious scars on the adductor muscle and outer shell. The hinge has 2-5 granular small teeth; The ligament is slender and located at the dorsal edge of the shell, and is brown in color. Thin jacket, thick jacket edge. Mussels are widely distributed along the coast of China. Growing on coastal rocks, it mostly inhabits areas with rapid seawater currents and clear water quality, and has strong resistance to adverse environments such as red tide and sewage. Food is mainly composed of organic debris and diatoms.
Bishop's pen snail shell
The mitre shell of the pen snail is a marine snail belonging to the family Callichthyidae in the subclass Gastropoda. The shell is thick, typically in the shape of a bullet, and slightly resembles a bishop's crown, hence the English name bishop's crown snail. Pen snails are common in the Indo Pacific region, inhabiting shallow sandy bottoms. The largest type of bishop's pen snail is 10 centimeters long, with a white shell surface and red yellow patches. Shell white, spiral tower round, shallow stitching; There are red spots on the surface of the shell, with a brilliant color.
Big bamboo snail shell
The large bamboo snail is a member of the bamboo snail family, with slender shells, a snail tower shape, and multiple layers of snails. The shell is large and sturdy, with a light flesh color and luster. Each layer of the snail usually has black markings, and the lower half of the body has lighter markings. The shell can reach a length of up to 27 centimeters. The shell is heavy, glossy, with a wide body layer and a long shell mouth. The later spiral layer is slightly convex and smooth. Early snail layers had weak longitudinal ridges, a milky white shell surface, and fractured snail bands composed of brown patterns. The shell opening is small, the suture band is obvious, and there is no umbilical hole. The outer lip is not thickened, and the interior is smooth. Twist of the shaft lip. The mouth cap is oval in shape, with the nucleus located below. Lack or only marginal teeth on the tongue. It inhabits shallow sandy bottoms in tropical Indo Pacific waters and is carnivorous.
Marble taro shell
The outline of the marble taro snail shell is generally straight, with a slight protrusion near the upper part. The shoulders are angular in shape, with strong nodules to almost smooth. The spiral tower is low to quite high, with contours ranging from slightly concave to slightly concave. The secondary snail layer has nodules ranging from strong to weak. The slope under the last layer of suture line of the adult shell is concave, with 2-4 weak spiral grooves and lines, and the spiral carving is often worn out. The snail layer near the bottom quarter to half usually has weak equidistant spiral ribs. The toxicity of the marble cone snail belongs to protein toxicity, similar to that of venomous snakes, but significantly stronger than that of venomous snakes by several times.
Yellow eyed penguin skull
The yellow eyed penguin is a penguin belonging to the bird class, penguin family, and yellow eyed penguin genus. Height is 56-78 centimeters, weight is about 5-8 kilograms. This species exhibits sexual dimorphism, with male birds possessing decorations derived from carotenoids. The difference between males and females can be seen from the pigment deposition on their feathers, with males having a brighter yellow head. The pupils of yellow eyed penguins are light yellow, which is their main characteristic. The body is black, and the jaw and throat are black brown. There is a yellow band connecting the eyes at the back of the head. Residing along the coastline of New Zealand's islands. Most of the coast is covered by coastal forests.
Western roe deer skull
The Western roe deer, belonging to the family Deer and genus Deer, is a small deer with a body length of only 95-135 centimeters, a shoulder height of 65 centimeters, and a weight of 15-30 kilograms. Cheeks gray, body color reddish, golden red in summer, deepening to brown or even black in winter. The color of the abdomen is light, and there is a tuft of white hair near the tail. The tail fur of female roe deer is heart-shaped, while that of male roe deer is kidney shaped. The tail is extremely short, only 2-3 centimeters, almost invisible. When frightened, they will shout loudly and raise their white tail hair. Only male roe deer have horns, are short and straight, and are 5-12 centimeters long. Unlike other deer, roe deer immediately begin to regrow after losing their horns.
Arched whale skull
The bowhead whale is a mammal belonging to the family of right whales in the order Cetiformes, also known as the Arctic whale, North right whale, or Arctic right whale. The body is spindle shaped; Head large, covered with keratoma; Whale whiskers are long and thin, with strong elasticity; Unclear neck; Back width; No dorsal fin. The body surface is black brown, the abdominal color is lighter, and the fins and tail fins are both black. Adult females have a slightly larger body size than males. Named after having an arched head. Life expectancy exceeds 100 years. Bow headed whales are one of the rarest populations in the whale family, with less than 6000 individuals worldwide, and are strictly prohibited from being hunted. Among the four species of the right whale genus, the bowhead whale is the largest species.
European bison skull
The European bison is a member of the family Oxidae in the order Artiodactyla. The body length is 220-300 centimeters, the tail length is 40-60 centimeters, and the weight is 450-1000 kilograms. Both female and male animals have horns, which are slender and elongated. The horns first turn inward, then turn upward, and then bend forward. The tips of the horns then bend inward. Female animals have shorter and thinner horns. Small head, exposed snout, small eyes, and short ears. The neck is relatively short, with obvious hanging hair from the lower cheeks to the chest. European bison breed offspring in spring, and typically cows can produce a calf weighing over 20 kilograms. The lifespan of European bison is quite long, about 40 years in suitable environments.
Reindeer skull
Reindeer, belonging to the family Reindeer in the order Artiodactyla, are animals of the genus Reindeer. Reindeer have a large body shape, with thick and dense coarse fur all over their body. Their head is long and straight, their mouth is thick, their eyes are large, their neck is thick and short, their nostrils are large, they do not have a nose mirror, their nostrils have short fur, their tail is short, and their hooves are wide. Females have smaller horns than males. Reindeer have features such as horse heads, antlers, donkey bodies, and cow hooves, and are commonly known as "four unlike". Reindeer are widely distributed in the cold regions of northern Eurasia, North America, and southern Siberia, generally inhabiting coniferous forests in cold temperate zones. Every year, reindeer undergo a large-scale migration of several hundred kilometers, with female deer leading the entire migration team and male deer following closely behind.
Sperm whale skull
Sperm whales are marine mammals belonging to the order Cetiformes and family Spermatidae. With a body length of up to 18 meters and a weight of over 50 tons, it is the largest toothed whale, with its head occupying one-third of its body. The head is huge, the lower jaw is small, and only the lower jaw has teeth. No dorsal fin; Highly capable of diving, it is the mammal with the deepest and longest diving time. Like a fish in size, it breathes through its lungs. Short neck, the head seems to be connected to the torso; Cervical spine healing; The nostrils are spray holes located at the snout end, the forelimbs become fins, the forearms degenerate, the palms become longer, and the number of toes increases, but the toes and claws cannot be seen from the outside; Hind limb degeneration; The tail is like a fish, with horizontal tail fins, and it swings by the tail when swimming.
White tailed deer skull
White tailed deer is an animal belonging to the subfamily of hollow toothed deer and the genus of hollow toothed deer. The white tailed deer has a wide white tail, with a slightly reddish brown fur in summer and a slightly gray brown fur in winter. An adult white tailed deer has antlers, which extend forward on the main trunk and grow upward on the forked branch. The horns of the white tailed deer do not split, and its broad brown tail is covered with a patch of white fur. When the white tailed deer encounters a danger warning and rushes forward, its tail lifts upward, revealing its white color. It is said to have the effect of confusing pursuers, and the name of the white tailed deer comes from this.
Spoonbill skull
Spoonbill, a collective term for six species of long legged wading birds, is the national bird of the Netherlands. Mainly feeds on small vertebrates and invertebrates such as shrimp, crabs, aquatic insects, insect larvae, worms, crustaceans, mollusks, frogs, tadpoles, lizards, and small fish, occasionally also consuming small amounts of plant-based food. Spoonbills often move in groups, and occasionally there may be individuals moving alone. Resting often spreads out in a straight line by the water's edge. Stand still for a long time, then fly to another place after being startled. Sexual alertness and fear of people, with both wings flapping rapidly during flight, averaging around 186 movements per minute. Flying often takes place in sparse single rows or in wavy diagonal lines.
Sheep skull
Sheep are mammals of the family Auchenipteridae in the order Artiodactyla. Full body and dense fur; Short head; Rams often have spiral shaped large horns, while ewes have no horns or small horns; There are tear troughs on the skull, and the nasal bone is relatively raised; Four hooves have toe glands; Sharp mouth, thin and flexible lips; The weight ranges from tens of kilograms to hundreds of kilograms, and the natural lifespan is about 15 years. Sheep originated in Central Asia and gradually expanded to various parts of the world. Gentle temperament, strong imitative and sociable, with a habit of following the leader sheep to gather in groups. Eating short grass, as well as coarse and hard straw and branches. Artificially raised animals can be fed with feed.
Skull of the Red tailed Owl
The red tailed hawk is a bird of the family Falconidae in the order Falconiformes. Its body is robust, with wide and round wings, and a red and broad tail. The red tailed pheasant is one of the largest members of birds, with a body length of 45-56 centimeters and a weight of 690-1300 grams. The red tailed pheasant has a very obvious male female dimorphism in terms of body size, with females being 25% larger than males. The upper beak of the red tailed pheasant has an arc-shaped protrusion at the edge, which is suitable for tearing prey and swallowing; The base has wax film or whisker like feathers; Strong wings, wide, round and dull wings, fan-shaped and soaring flight, fan-shaped rhythm slower than falcons; The tarsal region is relatively long, approximately equal to the length of the tibia. The iris of young birds is light yellow, and as adults, the color gradually darkens to bird reddish brown.
Porcupine skull
Porcupines are mammals of the family Porcupidae in the order Rodentia, belonging to the genus Porcupines. Extremely large in size. Eyes and ears are very small; The skull is thick and robust, the occipital spine is well-developed, and the nasal bone is long and wide, longer than half the length of the skull; A cavity with expansion and inflation; The nasal snout is concave and the nasal cavity is large; My whole body is covered in thorns, and the spines on my buttocks are particularly long. My tail is hidden inside the spines. The base of the spines on the forehead and front back is light brown in color, while the upper part is white; The body is dark brown with a white stripe on the neck. Porcupines mostly inhabit mountainous environments, making large-scale prevention and control difficult. They are often captured using physical equipment. Due to the increasing depletion and extinction of wild porcupines, the Chinese forestry department has listed them as a protected species and banned hunting.
Musk rat skull
Muskrat, belonging to the rodent order Cricetidae, genus Muskrat, also known as muskrat. The muskrat has a body shape similar to a large mouse, with dense fur around its body, a brown black or chestnut yellow back, and a brown gray belly. The tail is brownish black in length, slightly flattened, with scaly skin on top and sparse brownish black mixed hair. Because it lives in water and is good at swimming, it is known as a water mouse or water rat.
Yellow throated mink skull
The yellow throated ferret is a terrestrial carnivorous animal in the family Italidae of the order Carnivora, also known as the green ferret, the snub nosed dog, or the yellow weasel. Small and lightweight body length; Kiss tip, big ears; Short limbs; Well-developed claws; Tail cylindrical shape; In winter, the fur coat is brightly colored, with a black brown color from the tip to the neck and back, a white chin that extends backward to the ears, and a white or light yellow throat; The back of the body is orange yellow or yellow brown; Gradually transitioning to black brown in the middle of the body, and orange yellow or yellow brown in the chest; Abdominal pale yellow brown or light yellow white; The head, hind limbs, and tail are black brown in color.
Seagull skull
Seagulls are a group of seabirds belonging to the gull family in the order Characiformes. Seagull head and neck are white, back and shoulders are slate gray; The waist, tail feathers, and tail feathers are all pure white. The base is gray white or forms larger gray spots on the inner lining. The lower body is pure white. Humans believe that the call of seagulls sounds like "Europe, Europe", and "gull" is a onomatopoeic word that imitates this bird's call, hence the name. Seagulls are mainly distributed in northeastern, southern, and southwestern China, as well as in Europe, the Mediterranean coast, the Black Sea, Caspian Sea, western North America, including Alaska and the eastern Pacific coast, and even near the Tropic of Cancer.
Dog skull
Dogs are carnivorous mammals in the family Canidae, also known as dogs, and are referred to as the "six livestock" along with horses, cows, sheep, pigs, and chickens. The size and fur color of dogs vary depending on their breed, and their physique is well proportioned; The nose and snout are relatively long; The eyes are oval in shape; Two ears, either vertical or vertical; Limbs agile, with 5 toes in the forelimbs and 4 toes in the hindlimbs, with claws that cannot stretch or retract; The tail is circular or sickle shaped. According to Li Shizhen's "Compendium of Materia Medica", "Dog" means to knock. Dogs bark rhythmically, like knocking on objects, and some people say it is called a dog because of its roughness.
Spotted head wagtail skull
The spotted headed wagtail is an animal belonging to the family Scombridae in the order Scombriformes. The body length of the spotted headed wagtail is about 24 centimeters, belonging to the earless feather tribe. Its body color is brown with light horizontal stripes; The chin is white with one white diagonal line on the shoulder, and the abdomen is white with brown vertical lines; Yellow brown iris; Yellow green mouth, yellow end; The feet are yellow green, and the soles are covered in feathers. The spotted wagtail is distributed in northeastern India and various Southeast Asian countries, while it is found in southern, central, southwestern, and southeastern China. It inhabits forested and agricultural areas in mountainous, hilly, and plain regions. The spotted headed wagtail is nocturnal and usually moves alone or in pairs. It is more active during the day, particularly in the early morning and evening, and can also hunt at night.
Nile crocodile skull
Nile crocodile is a large crocodile belonging to the family Crocodylidae in the order Crocodiles. Nile crocodiles have a large body size, ranging from olive green to coffee colored, with black spots and a mesh pattern; The fourth tooth of the lower jaw protrudes outward from the depression of the upper jaw; There are 5 anterior teeth, 13-14 maxillary teeth, and 14-5 mandibular teeth, for a total of 64-68 teeth; The tail is strong and powerful. The adult Nile crocodile weighs up to one ton. The juvenile Nile crocodile is dark yellow brown in color, with obvious horizontal stripes on its body and tail. As an adult, the color of the horizontal stripes becomes lighter.
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