The slow-moving sloth doesn’t have much need for balance
the Collections posts Q&As Sluggish Sloths Have
Find out why Earth’s tilt is the reason we have seasons
Universe Help Staff Skylight: Why Does Earth Have
Protoceratops, like most ceratopsians, had a large head compared to its body. One reason ceratopsian heads were so enormous is that the skulls had bony collars, known as frills, covering the neck….
Humble Origins My, What A Big Skull You Have
The elaborate-ness and size of pterosaurs’ crest peaked in species that lived during the Late Cretaceous period—from about 100 to 66 million years ago, after which pterosaurs became extinct. Watch a video about pterosaur crests to learn more.
posts Q&As Mesozoic Mohawks: Why Did Pterosaurs Have
For thousands of years, people have kept animals for – They have kept sheep for wool, cows for milk, and dogs
domestication For thousands of years, people have
For thousands of years, people have kept animals for – They have kept sheep for wool, cows for milk, and dogs
domestication For thousands of years, people have
Meet the strange, giant animals that have all gone – 50,000 years, and learn what scientists think may have
Amphibians, we have not idea whatsoever how many have
Hall of Human Origins | American Museum of Natural History
Monkeys, lemurs and apes are our cousins, and we all have
Have your grade schoolers piece together what Earth – may have looked like 220 million years ago, when there
Have students look carefully at the continents.
Throughout history, when populations have grown and – economic activities have increased, the demand for – energy has also risen, even as societies have become
Climate Intense Storms Have Become More Common
