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Whale skulls have small eye orbits, long snouts (with the exception of monodontids and ziphiids) and eyes placed on the sides of its head. Whales range in size from the 2.6-metre (8.5 ft) and 135-kilogram (298 lb) dwarf sperm whale to the 34-metre (112 ft) and 190-metric-ton (210-short-ton) blue whale.
A whale's eye is adapted for seeing both in the euphotic and aphotic zones by increasing or decreasing the pupil's size to prevent damage to the eye. As opposed to land mammals which have a flattened lens , whales have a spherical lens.
Like other toothed whales, the sperm whale can retract its eyes. The sperm whale's eye does not differ greatly from those of other toothed whales except in size. It is the largest among the toothed whales, weighing about 170 g. It is overall ellipsoid in shape, compressed along the visual axis, measuring about 7×7×3 cm.
Right whale eye An example of baleen plates; there are about 50 plates in this photo. Adult right whales are typically 13–16 m (43–52 ft) long. They have extremely thick bodies with a girth as much as 60% of total body length in some cases.
Like other right whales, the North Atlantic right whale, also known as the northern right whale or black right whale, [2] is readily distinguished from other cetaceans by the absence of a dorsal fin on its broad back, short, paddle-like pectoral flippers and a long arching mouth that begins above the eye. Its coloration is dark grey to black ...
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 ...
Researchers also concluded that breed size affects how often and how long dogs dream, with smaller breeds dreaming more frequently but for shorter periods. ... How to read a dog's eyes: whale eyes ...
Image credits: Sasha Weilbaker #4 Wind Blades. Humpback Whales are one of the largest weighing animals of the world, yet they are profound swimmers, which attributes down to its flippers (fins).