A mammoth is any species of the extinct elephantid genus Mammuthus. The various species of mammoth were commonly equipped with long, curved tusks. They lived from the Pliocene epoch into the Holocene at about 4,000 years ago, and various species existed in Africa, Europe, Asia, and North America.
The blue whale is a marine mammal and a baleen whale. Reaching a maximum confirmed length of 29.9 meters and weighing up to 199 tonnes, it is the largest animal known ever to have existed. The blue whale's long and slender body can be of various shades of greyish-blue dorsally and somewhat lighter underneath.
They have an excellent sense of smell and night vision. In addition to their trademark hoods, cobras have round pupils and smooth scales. Colors vary widely from species to species. There are red, yellow, black, mottled, banded and many other colors and patterns of cobra.
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