By Sheetal Kumari | March 25, 2025
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Coelacanth, a sea fish, has been considered to be extinct till it was seen again in 1938. It is a 400 million-year-old creature that lives up to 100 years.
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Horseshoe crabs, some 300 million years old, look like they are from ancient times but have a closer evolutionary link to spiders. Their blue-colored blood helps in medical investigations and vaccine discovery.
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The 125-million-year-old deep-sea goblin shark uses its snout to detect prey and opens its jaw to capture food. It is 13 feet long.
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The duck-billed platypus, which emerged 110 million years ago, possesses genes that have a mix of mammalian, bird, and reptilian traits, as a 2008 Nature study revealed.
Dark-furred and primitive, the Amami rabbit lives on two Japanese islands. Endangered to the point where only 5,000 now exist, its ears are short, its claws long, and it inhabits forests.
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Nautiluses, very old cephalopods, have not evolved in 500 million years. Living in the Pacific and Indian Oceans, they swim and eat using jet propulsion.
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The largest lizard on our planet, the Komodo dragon, has survived for millions of years. Reaching 10 feet in length, it consumes 80% of its weight.
The purple frog, or pig-nose frog, is an Indian Western Ghats rare amphibian. After 100 million years of evolving, it is a subterranean dweller that comes above ground only for breeding.
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Cockroaches, order Blattodea, date back more than 300 million years. There are 4,000 species, and they look very similar to their early fossil relatives.
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The aardvark, nocturnal African mammal, evolved 50 million years ago. It is still much the same and is the sole survivor of the ancient order Tubulidentata.