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The long jaws and deep brain pan of the Indus river dolphin are visible from this skull cast. From the collection of The Children's Museum of Indianapolis.. The Indus river dolphin was described in 1853 by Richard Owen under the name Platanista gangetica, var. minor, based on a dolphin skull, which was smaller than skulls of the Ganges river dolphin.
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Opponents argue that interactions between humans and dolphins have had a negative impact on dolphin populations both in the wild and in captivity, [6] and that the practice can be dangerous for humans. [4] Concerns over animal welfare have led to bans on swimming with dolphins in Costa Rica, [7] as well as certain locations in New Zealand and ...
A blind mole-rat Visual perception in animals plays an important role in the animal kingdom, most importantly for the identification of food sources and avoidance of predators. For this reason, blindness in animals is a unique topic of study.
Conservationists have said many people are not aware of the laws against disturbing dolphins, whales and porpoises. Warning over dolphins at growing risk of disturbance as people flock to coasts ...
River dolphins are slow swimmers in comparison to oceanic dolphins, which can travel at speeds up to 35 miles per hour (56 km/h); the tucuxi can only travel at about 14 miles per hour (23 km/h). [26] Unlike other cetaceans, their neck vertebrae are not fused together, meaning they have greater flexibility than other non-terrestrial aquatic ...
“The dolphins are a kind of thermometer, a sentinel of the health of the rivers,” he said. Over the last few years, Omacha Foundation has tagged dolphins with satellite trackers to monitor ...
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] Living in murky waters, South Asian river dolphins are nearly blind, their tiny eyes having flattened corneas and no lens.