Charcot-Marie-Tooth disease (CMT) is a rare hereditary condition. It occurs when genetic changes disrupt the transmission of nerve signals from the brain to the muscles of the extremities, particularly those of the lower ...
Cell & Microbiology
Sep 15, 2021
0
10
Bite marks, in the form of traces left on bones by the teeth of scavengers or predators, are not uncommon in the fossil record. These marks are sometimes impressively large. What they show is that carnivores of the past, ...
Paleontology & Fossils
Jun 30, 2021
0
1
A more reliable way of estimating the size of megalodon shows the extinct shark may have been bigger than previously thought, measuring up to 65 feet, nearly the length of two school buses. Earlier studies had ball-parked ...
Paleontology & Fossils
Jun 7, 2021
0
4204
"Ornaments composed of elk teeth suspended from or sown on to clothing emit a loud rattling noise when moving," says auditory archaeologist and Academy of Finland Research Fellow Riitta Rainio from the University of Helsinki. ...
Archaeology
Jun 3, 2021
0
818
Scientists have long known that frogs are oddballs when it comes to teeth. Some have tiny teeth on their upper jaws and the roof of their mouths while others sport fanglike structures. Some species are completely toothless. ...
Evolution
Jun 1, 2021
1
166
Few structures in nature inspire more fear and fascination than the fangs of venomous snakes.
Evolution
May 13, 2021
0
11
Geochemical evidence reveals that armies in the Battles of Himera were a mixture of locals and outsiders, according to a study published March 24, 2021 in the open-access journal PLOS ONE by Katherine Reinberger of the University ...
Archaeology
May 12, 2021
0
265
Teeth play a central role in the ecology of most vertebrates—for catching prey, processing food and even attracting a mate. It's no surprise that scientists such as ourselves have long been interested in how teeth first ...
Paleontology & Fossils
May 12, 2021
1
52
The origins of a pretty smile have long been sought in the fearsome jaws of living sharks which have been considered living fossils reflecting the ancestral condition for vertebrate tooth development and inference of its ...
Evolution
May 6, 2021
0
304
Roughly 8,200 years ago, the island of Yuzhniy Oleniy Ostrov in Lake Onega in the Republic of Karelia, Russia, housed a large burial ground where men, women and children of varying ages were buried. Many of the graves contain ...
Archaeology
Jan 14, 2021
0
792
