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Nihohae (meaning “slashing teeth”; pronounced Nee-Ho-Hah-Ey) is an extinct genus of waipatiid dolphin that was native to the waters surrounding New Zealand during the Oligocene. It possessed long, tusk-like teeth unlike those of any extant cetacean, which were likely used like the “saw” of a sawfish to stun and injure prey
Ganges river dolphins usually are tan, chocolate brown, dark grey or light blue. They have an elongated, slender snout with sharp and very pointed teeth, similar to most river dolphins. The river dolphin has a rounded belly which, combined with their rectangular dorsal fin, makes them look particularly stocky in build compared to other dolphins.
The teeth of South Asian river dolphins are curved and longer in the front, where they remain exposed when the jaws are closed. [14] Indus dolphins have more teeth than Ganges dolphins, averaging 33.2 teeth in the upper jaw and the 32.9 in the lower jaw, as compared to 28.4 in the upper jaw and 29.4 in the lower. [3]
They may be numerous, with some dolphins bearing over 100 teeth in their jaws. At the other extreme are the narwhals with their single long tusks and the almost toothless beaked whales with tusk-like teeth only in males. [20] In most beaked whales the teeth are seen to erupt in the lower jaw, and primarily occurs at the males sexual maturity. [21]
Hippos have even been known to attack boats for encroaching upon their habitat, and they can use their sharp teeth that grow up to 20 inches long very effectively. They attack by biting, and ...
The Indo-Pacific bottlenose dolphin is generally smaller than the common bottlenose dolphin, has a proportionately longer rostrum, and has spots on its belly and lower sides. [5] [6] It also has more teeth than the common bottlenose dolphin — 23 to 29 teeth on each side of each jaw compared to 21 to 24 for the common bottlenose dolphin. [6]
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"The high concentration of calcium in kale keeps your bones and teeth strong, and the potassium helps your cells stay hydrated and maintains energy pumps to fuel daily activities," says Dr ...