How are gorillas so torn and shredded
Baleen whales have no teeth, but rather hundreds of up to four meters long whales in their upper jaw. Beards, like our hair and fingernails, consist of the horny substance keratin and are also known as 'whalebone'.
The Beard plates are one to three centimeters apart, are lined with hairy fibers and together form a kind of sieve. Whales open their mouths to eat, water and food flow in and then the water is pushed out again through the whiskers. Your food remains filtered in the mouth: Krill, plankton and other small organisms. Some whales can swim with their mouths open, constantly filtering food. In contrast to the toothed whales, the 'feeding tools' of the baleen whales continue to grow throughout their life, which is also necessary due to the signs of wear and tear.
The 15 species of baleen whales will be in four families subdivided: Gray whales (1 kind), Furrow whales (9 kinds), Right whales (4 types) and Minke right whales (1 kind). The furrow whales, the “most modern” of the large whale species, include, for example, mink whale, Bryde's whale, humpback whale, sei whale, gray whale, northern and southern right whale, fin and blue whale. The animals get their name because of the furrows on their necks, which expand like an accordion when they suck in water to eat, and show a pink skin.
Baleen whales generally only feed for four or five months of the year. To do this, in the summer months of the respective hemisphere they go to the cooler, more nutritious waters around the poles of the earth, where a large whale is up to two tons of food every day can absorb, especially krill crabs. Such amounts are needed to build up a thick layer of fat, the bubbler. Whales need the energy reserves for their own annual, long migrations to their reproductive grounds in subtropical and tropical latitudes, which they visit over the winter. Sometimes a journey of several thousand kilometers. In spring, the whales migrate back to the polar waters, where they spend the summer.
In the case of baleen whales, in contrast to toothed whales, no echo sounder bearing has been proven. Presumably their eyesight is sufficient to track down the plankton and krill swarms. However, they can emit very loud, low-frequency sounds that can be heard hundreds of kilometers away and are used to communicate with one another.
This is how you help the whales and dolphins
- West Pacific gray whales
Oil and gas deposits off the Russian island of Sakhalin threaten the refuge of the endangered West Pacific gray whales. Continue reading ...
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