How do shark teeth bite? Reciprocating saw, glue provide answers
Sharks have a big reputation for their teeth.
Plants & Animals
Sep 8, 2016
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216
News tagged with shark teeth
Ancient South Carolina whale yields secrets to filter feeding's origins
The blue whale is the largest animal that has ever lived. And yet they feed almost exclusively on tiny crustaceans known as krill. The secret is in the baleen, a complex filter-feeding system that allows the enormous whales ...
Plants & Animals
Jun 29, 2017
0
135
Tracking evolution through teeth: The small-fry ancestor of the great white shark
Mackerel sharks (Lamniformes) are a group consisting of some of the most iconic sharks we know, including the mako shark (the fastest shark in the world), the infamous great white shark, and Megalodon, the biggest predatory ...
Plants & Animals
Jul 5, 2019
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5
The end-Cretaceous extinction unleashed modern shark diversity
A study that examined the shape of hundreds of fossilized shark teeth suggests that modern shark biodiversity was triggered by the end-Cretaceous mass extinction event, about 66 million years ago.
Archaeology
Aug 2, 2018
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114
Fossils in Morocco reveal the astounding diversity of marine life 66 million years ago, just before the asteroid hit
Sixty-six million years ago, the Cretaceous period ended. Dinosaurs disappeared, along with around 90% of all species on Earth. The patterns and causes of this extinction have been debated since paleontology began. Was it ...
Paleontology & Fossils
Sep 26, 2023
1
75
Bringing a shark to a knife fight: 7,000-year-old shark-tooth knives discovered in Indonesia
Excavations on the Indonesian island of Sulawesi have uncovered two unique and deadly artifacts dating back some 7,000 years—tiger shark teeth that were used as blades.
Archaeology
Oct 27, 2023
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250
Fossil bone bed helps reconstruct life along California's ancient coastline
In the famed Sharktooth Hill Bone Bed near Bakersfield, Calif., shark teeth as big as a hand and weighing a pound each, intermixed with copious bones from extinct seals and whales, seem to tell of a 15-million-year-old killing ...
Archaeology
Jun 8, 2009
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0
Ancient fish scales and vertebrate teeth share an embryonic origin
In biology, one long-running debate has teeth: whether ancient fish scales moved into the mouth with the origin of jaws, or if the tooth had its own evolutionary inception.
Archaeology
Nov 20, 2017
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198
Shark diversity unaffected when the dinosaurs were wiped out
A global catastrophe 66 million years ago led to the extinction of all non-avian dinosaurs, and large marine reptiles like mosasaurs and plesiosaurs. But what happened to the sharks? According to a study of sharks' teeth ...
Plants & Animals
Aug 10, 2021
1
1016
Plesiosaur a victim of shark attack
(PhysOrg.com) -- An 85 million-year-old plesiosaur fossil has been found with over 80 shark's teeth, suggesting the animal was the victim of sharks in a feeding frenzy. The find is perhaps the most spectacular example of ...
