Human teeth have to serve for a lifetime, despite being subjected to huge forces. But the high failure resistance of dentin in teeth is not fully understood. An interdisciplinary team led by scientists of Charite Universitaetsmedizin ...
Bio & Medicine
Jun 10, 2015
0
91
Baleen whales, such as the gigantic 30m-long blue whale, are the largest animals that have ever lived on this planet. They even beat the largest of the dinosaurs. But, ironically, the secret to their success lies in their ...
Plants & Animals
Nov 30, 2016
0
28
(Phys.org)—A pair of researchers, one with the Naturalis Biodiversity Center in the Netherlands, the other with the University of Bristol in the U.K. has found what appears to be the earliest known example of a creature ...
Piranha fish have a powerful bite. Their teeth help them shred through the flesh of their prey or even scrape plants off rocks to supplement their diet.
Evolution
Oct 15, 2019
1
179
The teeth of a mollusk can not only capture and chew food to nurture its body, but the marine choppers also hold insights into creating advanced, lower-cost and environmentally friendly materials.
Nanomaterials
Mar 17, 2022
0
145
(PhysOrg.com) -- Sharks are capable of continually growing new teeth. As the teeth age, they fall out and new ones move forward similar to that of a tooth conveyor belt. Humans, and most mammals, on the other hand are only ...
A new research paper published in Biology Letters has revealed that picrodontids—an extinct family of placental mammals that lived several million years after the extinction of the dinosaurs—are not primates as previously ...
Evolution
Jan 9, 2024
0
241
(PhysOrg.com) -- In contrast to a toothed whale, which retains teeth that aid in capturing prey, a living baleen whale (e.g., blue whale, fin whale, humpback, bowhead) has lost its teeth and must sift zooplankton and small ...
Plants & Animals
Sep 29, 2010
0
0
The Tyrannosaurus rex and its fellow theropod dinosaurs that rampage across the screen in movies like Jurassic World were successful predators partly due to a unique, deeply serrated tooth structure that allowed them to easily ...
Archaeology
Jul 28, 2015
1
1273
When a Lake Malawi cichlid loses a tooth, a new one drops neatly into place as a replacement. Why can't humans similarly regrow teeth lost to injury or disease?
Evolution
Oct 19, 2015
0
63
