Despite the seemingly basic things we don't know about dinosaurs, we do know some surprising things – like their body temperatures.

In 1964, a paleontologist named John Ostrom unearthed some fascinating fossils from the mudstone of Montana. Its discovery set the stage for what’s known today as the Dinosaur Renaissance, a total re-thinking of what we thought we knew...

The concept of warm-blooded and cold-blooded animals is outdated because there are actually tons of different animal thermoregulation strategies.

For a long time, scientists have debated whether dinosaurs were warm-blooded or cold-blooded. Turns out, they were probably somewhere in between.

We humans can rely on our internal body heat to help keep us warm. But what can cold-blooded animals do when faced with the threat of freezing? Here are three creatures that have come up with some...“cool” solutions.

For a long time, scientists have debated whether dinosaurs were warm-blooded or cold-blooded. Turns out, they were probably somewhere in between.

Most fish are pretty sluggish in the cold. But the Pacific bluefin tuna is one of the fastest apex predators in the frigid Pacific ocean. Their physiology has adapted to help them retain more of the heat their bodies produce, except when...

Scientists can find answers in some pretty unusual places, and recently they found some evidence that dinosaurs weren't cold-blooded by looking at... eggshells?

Hank introduces us to ourselves by taking us on a journey through the fascinatingly diverse phyla known as chordata. And the next time someone asks you who you are, you can give them the facts: you're a mammalian amniotic tetrapodal...

Explore homeostasis with the Amoeba Sisters and learn how homeostasis relates to feedback in the human body. This video gives examples of negative feedback (temperature and blood glucose regulation) and positive feedback (events in...

Hank takes us on a trip around the body - we follow the circulatory and respiratory systems as they deliver oxygen and remove carbon dioxide from cells, and help make it possible for our bodies to function.

This live-action video program is about the word mammal. The program is designed to reinforce and support a student's comprehension and retention of the word mammal through use of video footage, photographs, diagrams and colorful,...

This live-action video program is about the word mammal. The program is designed to reinforce and support a student's comprehension and retention of the word mammal through use of video footage, photographs, diagrams and colorful,...

Birds are a vertebrate group with which we are all familiar. This beautiful and colorful series of videos explores the major characteristics, adaptations, and life cycles of this group of animals. Special emphasis is paid to the features...

This live-action video program is about endotherms. The program is designed to reinforce and support a student's comprehension and retention of the term through use of video footage, photographs, diagrams and colorful, animated graphics...

This live-action video program is about ectotherms. The program is designed to reinforce and support a student's comprehension and retention of the term through use of video footage, photographs, diagrams and colorful, animated graphics...