The rattle is composed of a series of hollow, interlocked segments made of keratin, which are created by modifying the scales that cover the tip of...

Osteoderms are bony scutes that underlie the skin of alligators. These tough scales act as a plate of armor for the animal, protecting them from t...

American alligators are found in the southeastern United States from Virginia along the Atlantic coast to Florida and into the Gulf of Mexico in Te...

A tentacle is an organ present in some species of animals, most of them are invertebrates. They are a flexible, mobile, elongated organ that is use...

The Nile crocodile is a large reptile found throughout much of Africa, including Egypt, Sudan, and Ethiopia. It has an average length of around 16 ...

Entomology is a branch of zoology focused on the identification of insects and has become an increasingly common hobby, with butterflies and dragon...

The horseshoe crab is an ancient marine arthropod known for its horseshoe-shaped carapace. Despite its name, it is not a true crab but is more clos...

The baculum is a bone found in the penis of many placental mammals. It is absent in the human penis, but present in the penises of many other prima...

Ostriches are the world's largest birds. They are primarily vegetation, occasionally feeding on locusts and remains left behind by predators. Ostri...

The giraffe is the tallest terrestrial animal living today, reaching heights up to 19 feet (5.8 m). Native to Africa, the giraffe feeds on leaves t...

The longhorn is one of nearly a hundred breeds of living domestic cattle. Modern domestic cattle evolved from a single ancestor, the Aurochs. Remai...

The term "pinkie mouse" generically describes a wide range of live or frozen mice that are fed to pet reptiles and amphibians. It is a specific ter...

The star-nosed mole is part of the Talpidae family and can be found in North America, usually in bogs, swamps, and wetlands. This species has water...

Leschenault's rousette fruit bat is a medium-sized bat found across South and Southeast Asia, known for its role as a vital pollinator and seed di...

The chacma baboon is indigenous to the savanna woodlands and mountains of South Africa. Males of this species have large canines that are used aggr...

Stingrays are a group of flat-bodied, cartilaginous fish belonging to the family Dasyatidae. They are characterized by their distinctive, diamond-s...

The tokay gecko is a nocturnal arboreal gecko, native to India, Bhutan, Nepal, Bangladesh, throughout Southeast Asia, Philippines to Indonesia and ...

The sugar glider is a small, omnivorous, arboreal, and nocturnal gliding possum belonging to the marsupial infraclass. The common name refers to it...

The Javan mastiff bat is a small bat species native to parts of Southeast Asia, including the island of Java, Indonesia. It is recognized by its sh...

The impala is a herbivorous antelope native to southeastern Africa. This species grazes on a variety of grasses when available, but will switch to ...

We believe education is the greatest gift osteology can share and that every human specimen can contribute to the advancement of science. These spe...

We believe education is the greatest gift osteology can share and that every human specimen can contribute to the advancement of science. These spe...

The Morpho Marcus (or Morpho Adonis) is a neotropical butterfly. These butterflies are found in mid-elevation rainforest at altitudes between about...

Entomology is a branch of zoology focused on the identification of insects and has become an increasingly common hobby, with butterflies and dragon...

The hinge-back tortoise is a small to medium-sized tortoise found in Africa. It is named for the hinge on its shell that allows it to close its s...

The house sparrow is a small, adaptable bird that has become a familiar sight in urban and rural areas worldwide. With its distinct brown and gray ...

Also known as the Urania Leilu, the green-banded Urania is a day-flying moth of the Uraniidae family. It is found in tropical South America east of...

Discover the fundamentals of comparative anatomy with our Prime Collection Kit, featuring a diverse selection of real skulls from North American sp...

Entomology is a branch of zoology focused on the identification of insects and has become an increasingly common hobby, with butterflies and dragon...

The hammerhead bat, Hypsignathus monstrosus, native to the rainforests of central Africa, is the largest of the African bats. The male of this stra...

Bearded dragons are lizards that are native to Australia. They live in rocky and arid regions of the country and are adept climbers. In the wild th...

The scorpion mud turtle is a medium-to-large sized aquatic turtle species found in Mexico, Central America and South America. It is primarily carni...

The domestic cat is the most common member of the Felidae family worldwide. There are an estimated 100 million cats in the western world. There ar...

The rock hyrax, also called the rock dassie, is found throughout most of Africa. This species makes its dwellings in rocky crevices. The rock hyrax...

The society finch is a small and lively bird that is native to parts of Southeast Asia. It has a short, rounded body with a long tail and a curved...

The Javan pipistrelle bat is a small bat species found primarily in Southeast Asia, including the island of Java, Indonesia. It has a slender body,...

The American opossum is a marsupial species found throughout North America. Opossums have long heads with a pointed snout and long whiskers, as wel...

All dogs, wild and domestic, are direct descendants of wolves. Dogs have been bred as pets and companions for thousands of years with the earliest ...

Butterflies have the typical four-stage insect life cycle. Winged adults lay eggs on the food plant on which their larvae, known as caterpillars, ...

American alligators are found in the southeastern United States from Virginia along the Atlantic coast to Florida and into the Gulf of Mexico in Te...

The Arizona bark scorpion is a venomous, nocturnal scorpion found in the southwestern United States and northwestern Mexico. Female bark scorpions ...

Butterflies have the typical four-stage insect life cycle. Winged adults lay eggs on the food plant on which their larvae, known as caterpillars, w...

The Nile crocodile is one of the largest and most powerful reptiles, found across rivers, lakes, and marshes in sub-Saharan Africa. It has a robust...

Raccoons are lively, nocturnal omnivores found from southern Canada to Panama. They are best known for their black bandit-like mask and ringed tail...

The bobcat, a medium-sized North American wildcat, is known for its distinctive appearance, including a compact body, short legs, and a bobbed tail...

The meadow vole can be found in North America and Canada. It is sometimes called the field mouse or meadow mouse. The meadow vole is very active, n...

The Uinta ground squirrel is a small, diurnal rodent species native to the western United States. They primarily inhabit montane and alpine meadows...

Parrots are birds of the roughly 393 species in 92 genera that make up the order Psittaciformes, found in most tropical and subtropical regions. Th...