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A 340-tonne whale species lived 39 million years ago

  • August 6, 2023
  • Posted by: OptimizeIAS Team
  • Category: DPN Topics
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A 340-tonne whale species lived 39 million years ago

Subject :Environment

Section: Species in news

Context:

  • The newly discovered Perucetus colossus, an ancient species of whale, is thought to be one of the largest and heaviest animals on record.

Perucetus colossus:

  • The species is discovered in Southern Peru and estimated to be approximately 39 million years old.
  • Estimates of its size and weight, based on a partial skeleton, rival those of the blue whale, which was previously thought to be the heaviest animal ever to exist.
    • It is predicted that the skeletal mass would be two-three times that of a 25-metres-long blue whale.
  • The findings suggest that the trend towards gigantism in marine mammals may have begun earlier than previously thought.
  • The ancient whale species displays the highest degree of bone mass increase known to date, an adaptation associated with shallow diving.
  • The estimated skeletal mass of P. colossus exceeds that of any known mammal or aquatic vertebrate.
A 340-tonne whale species lived 39 million years ago Environment

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