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This is an accepted version of this page This is the latest accepted revision, reviewed on 10 February 2025. Extinct genus of saber-toothed cat Smilodon Temporal range: Early Pleistocene to Early Holocene, 2.5–0.0082 Ma Pre๊ ๊ O S D C P T J K Pg N ↓ Mounted S. populator skeleton at Tellus Science Museum Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata ...
The speartooth shark (Glyphis glyphis) is a rare species of river shark, belonging to the family Carcharhinidae. It inhabits coastal marine waters and tidal reaches of large tropical rivers in northern Australia and New Guinea .
A new point-to-point bite model is introduced in the article by Andersson et al., showing that for saber-tooth cats, the depth of the killing bite decreases dramatically with increasing prey size. [10] The extended gape of saber-toothed cats results in a considerable increase in bite depth when biting into prey with a radius of less than 10 cm.
The tiger shark is the only species in its family that is ovoviviparous; its eggs hatch internally and the young are born live when fully developed. [7] Tiger Sharks are unique among all sharks in the fact that they employ embrytrophy to nourish their young inside the womb. The young gestate in sacks which are filled with a fluid that nourishes ...
Dorsal fin diagram with landmarks labeled. Fins allow the sharks to be able to guide and lift themselves. Most sharks have eight fins: a pair of pectoral fins, a pair of pelvic fins, two dorsal fins, an anal fin, and a caudal fin. Pectoral fins are stiff, which enables downward movement, lift, and guidance.
Machairodontinae is an extinct subfamily of carnivoran mammals of the family Felidae (true cats). They were found in every continent except for Australia and Antarctica. The earliest species is known from the Middle Miocene, while the latest species Smilodon populator survived up to the Early Holocene (8,200~9,100 years ago).
Researchers have discovered evidence pointing to the first known case of a porbeagle shark — which can grow up to 12 feet long and 500 pounds — being killed by a large shark predator.
Physogaleus teeth reach a maximum size that is smaller than that of true tiger sharks, and they lack the heavy serrations typical of Galeocerdo. They are also are more slender and the central cusp can be somewhat twisted toward the crown. This indicates individuals of Physogaleus probably had a diet of bony fish, similar to the living sand ...