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  • When Australia separated from Gondwanaland, it was like a giant Noah's Ark adrift on the seas,

  • and the animals on it had to adapt in isolation from the rest.

  • The trees also adapted, particularly the eucalyptus tree, which quickly spread.

  • Some marsupials had no problems in squeezing the juice out of this situation.

  • The Koala bear managed the impossible: it adapted to the point where all it eats are eucalyptus leaves.

  • Eucalyptus leaves are poor quality food, indigestible and full of toxins,

  • but the koala has managed to survive on them.

  • Their digestive process is long, and the koalas go about their business without wasting any energy.

  • This is part of their metabolic strategy.

  • They can survive on only 16 ounces of leaves a day,

  • but of course they move very slowly to avoid wasting energy.

  • They are pretty clumsy on the ground and very vulnerable,

  • so they only go down to the ground in order to move over to another tree.

  • The koala is indifferent to the rhythm of the bustling world.

  • And even more so when it's raising its young.

  • Raising its young takes time.

  • The young koalas suckle in the marsupial bag until they are 6 months old.

  • When they are weaned, they are initiated into the art of leaf eating.

  • For this, their mother feeds them with her own feces,

  • a purée which provides them with the microorganisms they need to digest the toxic eucalyptus leaves.

  • After weaning, the young koalas leave their mothers to live on their own in these woodlands.

When Australia separated from Gondwanaland, it was like a giant Noah's Ark adrift on the seas,

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    陳貞吟 發佈於 2021 年 01 月 14 日
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