Whales belong to the order of cetaceans, divided into two suborders: Mysticeti (fin whales) and Odontoceti (toothed whales). Print These beautiful coloring pictures of a whale. On this page, we have collected some for you. Happy coloring.
There are around 14 live families, divided into 43 genera and 86 species. They have evolved from the terrestrial to the aquatic environment and perform all their activities (reproduction, feeding, rest, etc.) in the water.
Free Whale Coloring Pages
Whales occupy all oceans of the world, and the present ones seem to have originated from the Artiodactyla order, passing to the water about 50 million years ago.
Whales are practically hairless (some young have in some parts of the body). They breastfeed and are endothermic, like all mammals.
They have adaptations to the aquatic environment; like the fusiform body, like a fish, the forelimbs resemble a paddle, suitable for swimming, the lower limbs are vestigial, they have a tail with horizontal lobes that also help swimming.
The body contains a thick layer of subcutaneous fat, which helps to float and keeps it warm. The nostrils are on top of the head, breath through the lungs, shortening the neck, and have no sweat glands.
They are large animals with species that can weigh up to 180 tons and measure up to 30 meters. They rise to the surface and breathe through their nostrils, releasing a jet of hot air (coming from the lungs), which condenses with the temperature shock on the surface, looking like a jet of water.
When they dive, they manage to stay for long periods without breathing (sperm whales can keep up to three hours without breathing) because they have a more efficient circulatory and respiratory system than other mammals.
It is in-depth the heartbeat falls, and there is less spending on oxygen, besides having double the erythrocytes and hemoglobin for oxygen transport.
They communicate by vocalization and use echolocation for guidance. After primates, some species are considered the most intelligent among mammals.