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Image of not-to-scale renderings of the skulls of various primate species
Surface Area of Tooth Roots Predicts Primate Body Size
Researchers determine that a primate’s tooth root, and not just its crown, can yield reliable information about body size, but the relationship between root surface area and diet isn’t as clear.
Surface Area of Tooth Roots Predicts Primate Body Size
Surface Area of Tooth Roots Predicts Primate Body Size

Researchers determine that a primate’s tooth root, and not just its crown, can yield reliable information about body size, but the relationship between root surface area and diet isn’t as clear.

Researchers determine that a primate’s tooth root, and not just its crown, can yield reliable information about body size, but the relationship between root surface area and diet isn’t as clear.

tooth
Image of the Day: Ancient Dental Enamel
Amy Schleunes | Apr 3, 2020 | 1 min read
An analysis of fossilized teeth sheds light on the evolutionary relationships between Pleistocene hominins.
Snapshot of the repairing experiment on a human tooth
Image of the Day: Enamel Repair
Nicoletta Lanese | Sep 3, 2019 | 1 min read
Scientists engineered a new material that could be developed for use in treating tooth decay.
hominin teeth evolution neanderthal modern human divergence fossil record
Neanderthals and Modern Humans Diverged Earlier than Thought: Study
Chia-Yi Hou | May 15, 2019 | 2 min read
Fossil records show that the most recent shared ancestor with modern humans may have lived at least 800,000 years ago.
Found: Missing Link in Whale Evolutionary History
Ashley P. Taylor | Nov 29, 2018 | 2 min read
A toothless whale fossil without signs of baleen could help explain how the whale filtration system evolved.
How a Sleep-Associated Hormone Affects Murine Tooth Development
Mallory Locklear | Aug 22, 2016 | 3 min read
Disrupting the light/dark cycles of pregnant mice, researchers observe detrimental effects in the mouths of the animals’ pups.
Telltale Mouth Microbes
Jyoti Madhusoodanan | Sep 9, 2015 | 3 min read
The composition of the plaque microbiome can reveal a child’s risk of dental caries months before the decay appears, according to a study.
Saw-toothed Dinos
Amanda B. Keener | Jul 29, 2015 | 1 min read
Microscopic analysis of carnivorous dinosaur teeth reveals specialized serrated edges.
Mining the Mouth’s Many Microbes
Tracy Vence | Jun 18, 2014 | 4 min read
The oral cavity contains several distinct and dynamic microbial communities, and some of these commensals may seed the body’s other microbiomes.
Making Sense of the Narwhal Tusk
Kerry Grens | Mar 18, 2014 | 2 min read
Emerging evidence suggests that the marine mammal’s long front tooth might help the narwhal sense environmental changes.  
The Scientist on The Pulse #3
Kerry Grens | Jan 28, 2014 | 1 min read
Kerry Grens chats about ancient tooth decay, asthma, and fat cells.
Teasing Out New Teeth
Dan Cossins | Mar 12, 2013 | 1 min read
Researchers mix cells from human adult gum tissue with tooth-inducing cells from mouse embryos to grow new hybrid teeth complete with roots.
Braking for Whales
Kate Yandell | Feb 19, 2013 | 2 min read
Fossils of four new cetacean species have been discovered at a road construction site in California.
First Stem-Cell-Organ Transplant
Jessica P. Johnson | Jul 13, 2011 | 1 min read
A fully-functional tooth grown from stem cells is successfully implanted into a mouse.
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