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  • The Sixth Mass Extinction: fact, fiction or speculation?
    If, more conservatively, we base our calculations on the 638 mollusc species we (Cowie et al , 2017) considered extinct, out of ~80,000 extant (not fossil-only) mollusc species (MolluscaBase editors, 2021), including marine species that have suffered negligible extinction, we obtain a rate of 16 E MSY, or 26 E MSY if we also include species we
  • The longest living animals on Earth 2025 - BBC Science Focus . . .
    Come and take a look at some of the longest-living things on Earth, from a tree that is thousands of years old to the world's oldest dog
  • In World First, Monkeys Cloned Like Dolly the Sheep
    Since then, scientists have cloned more than 20 species—from cows to rabbits to dogs—using this technique, but the Chinese effort marks the first time that non-human primates have been cloned
  • Bird - Wikipedia
    Birds have a very efficient system for diffusing oxygen into the blood; birds have a ten times greater surface area to gas exchange volume than mammals As a result, birds have more blood in their capillaries per unit of volume of lung than a mammal [110]
  • What is mass extinction and are we facing a sixth one?
    About 98% of all the organisms that have ever existed on our planet are now extinct When a species goes extinct, its role in the ecosystem is usually filled by new species, or other existing ones Earth's 'normal' extinction rate is often thought to be somewhere between 0 1 and 1 species per 10,000 species per 100 years
  • This mammal has the world’s slowest metabolism
    More than one-third of Earth’s land is forested That means there is lots of treetop space for these critters Yet few vertebrate species choose to subsist on tree leaves In contrast, other types of animals have heavily diversified throughout habitats that take up much less space globally For instance, there are 15 species of finch on just
  • How mammals took over the world - Science News
    The Rise and Reign of the Mammals Steve Brusatte Mariner Books, $29 99 In my opinion, the most satisfying science documentary TV series ever made was a 1970s British production called Connections


















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