Image of the Day: Bear Sinuses
Image of the Day: Bear Sinuses
A new study finds that the extinct European cave bear’s large sinuses represent a tradeoff between hibernation length and the flexibility of their diets.
Image of the Day: Bear Sinuses
Image of the Day: Bear Sinuses

A new study finds that the extinct European cave bear’s large sinuses represent a tradeoff between hibernation length and the flexibility of their diets.

A new study finds that the extinct European cave bear’s large sinuses represent a tradeoff between hibernation length and the flexibility of their diets.

teeth
Image of the Day: Tiny Dinosaur
Image of the Day: Tiny Dinosaur
Amy Schleunes | Mar 16, 2020
A roughly 99-million-year-old piece of amber from northern Myanmar contains the skull of what appears to represent the smallest known dinosaur of the Mesozoic era.
Image of the Day: Fish that Eat FishImage of the Day: Fish that Eat Fish
Image of the Day: Fish that Eat Fish
Emily Makowski | Sep 13, 2019
Researchers categorize the different jaws of piscivorous fishes.
Image of the Day: Famine Victim Teeth
Image of the Day: Famine Victim Teeth
Emily Makowski | Sep 12, 2019
Dental calculus provides a look into the diets of 42 people who died during the Great Irish Famine.
Image of the Day: Enamel Repair
Image of the Day: Enamel Repair
Nicoletta Lanese | Sep 3, 2019
Scientists engineered a new material that could be developed for use in treating tooth decay.
Caution Urged for Comparing Ancient and Modern Humans’ Oral Microbes
Caution Urged for Comparing Ancient and Modern Humans’ Oral Microbes
Alejandra Manjarrez | Aug 7, 2019
Microbial species that are commonly associated with oral diseases in modern humans are unreliable proxies for determining tooth health status in ancient samples, a new study finds.
Image of the Day: Invisible Weapons
Image of the Day: Invisible Weapons
Chia-Yi Hou | Jun 6, 2019
See a close-up of the deep-sea dragonfish’s transparent teeth.
Image of the Day: Gnashers
Image of the Day: Gnashers
Carolyn Wilke | Feb 18, 2019
A mollusk grows magnetic teeth so tough they can grind down rocks.  
Newly Discovered Ancient Shark Found Alongside Bones of <em>T. rex</em>
Newly Discovered Ancient Shark Found Alongside Bones of T. rex
Carolyn Wilke | Jan 22, 2019
Galagadon’s tiny teeth look like the spaceships in its namesake video game from the early 1980s.
Image of the Day: Wisdom Teeth Lost
Image of the Day: Wisdom Teeth Lost
Carolyn Wilke | Jan 9, 2019
A study of tiny monkey skulls and teeth suggests that shrinking body size didn’t crowd out wisdom teeth during evolution.