AZ Animals on MSN

Do Hippos Really Need Their Teeth Brushed?

From Japan to China to Toledo, zookeepers routinely brush hippos' teeth. In the wild, hippos rely on birds and fish for ...

“Unlike Anything Yet Discovered”: New Fossil Rewrites Our Understanding of Reptile Evolution

A 242-million-year-old fossil from Devon reveals unexpected skull and tooth features in one of the earliest lepidosaurs. A newly discovered fossil from Devon has provided rare insight into the ...
Smithsonian Magazine

Newly Described Fossil From Wyoming Sheds Light on When Frogs and Toads Lost Their Teeth

A fragment of upper jaw fossil from the Early Cretaceous is among the oldest examples of a toothless amphibian in the fossil record Chihiro Kai The arid valleys of Wyoming’s Cloverly Formation are ...
Yahoo

Open Wide on Netflix: What Did Orthodontist John Mew Do?

Netflix will release a documentary titled Open Wide this month, showcasing the unconventional practices of a 96-year-old orthodontist named John Mew. In addition to John, it will feature his son, Mike ...

Many animals can reshape and shed their teeth—and now scientists have traced this ability back 380 million years

Losing your baby teeth is a strange experience. The teeth gradually loosen until they're replaced by thicker, more durable ...