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Since shark skeletons were cartilaginous and lacked hard parts conducive to fossilization, typically only their spines and teeth remain. Despite occurring so early in the fossil record, Michigan's cladoselachian sharks closely resembled modern forms. Fossil shark spines found in Michigan are usually the remains of ctenacanths and cladodonts.
Rhincodontidae is a shark family which includes the whale shark, the sole extant member and the largest living fish. A single extinct genus, Palaeorhincodon , is known from the Paleocene as well. [ 1 ]
The whale shark (Rhincodon typus) is a slow-moving, filter-feeding carpet shark and the largest known extant fish species. The largest confirmed individual had a length of 18.8 m (61.7 ft). [8] The whale shark holds many records for size in the animal kingdom, most notably being by far the most massive living non-cetacean animal.
The researchers’ analysis revealed exactly how the killer whales, often hunting as a group, subdue the whale shark. First, the orcas use their bodies to hit a whale shark at high speed.
A giant shark that was known as a megalodon use to terrorize the underwater world. Although the enormous sharks didn't make the evolutionary cut, researchers believe they still had a big impact on ...
Sharkbook is a global database for identifying and tracking sharks, particularly whale sharks, using uploaded photos and videos.In addition to identifying and tracking sharks, the site allows people to "adopt a shark" and get updates on specific animals.
Swimmer known as the The Shark is trying again to cross Lake Michigan 09/02/2024 20:37 -0400 GRAND HAVEN, Mich. (AP) — An ultra swimmer is trying again to cross Lake Michigan, from Michigan to Wisconsin, just a few weeks after trouble with a GPS device forced him to give up after 60 miles (96 kilometers).
An ultra swimmer is trying again to cross Lake Michigan, from Michigan to Wisconsin, just a few weeks after trouble with a GPS device forced him to give up after 60 miles (96 kilometers). Jim ...