Koala
A koala was a marsupial native to Earth.

In 2380,  O'Connor mentioned to Ensign D'Vana Tendi seeing a koala with the universe resting upon its back during his ascension. ()

The following year, Ensign Brad Boimler claimed to have seen a koala after he nearly drowned in Cetacean Ops. He, too, related his experience to Tendi, who politely suggested that Boimler keep that piece of information to himself. ()

When Lieutenant Commander Steve Stevens was pronounced brain-dead for ten minutes in 2382 after being turned to stone, he claimed he saw a koala sitting atop a black mountain. ()

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Earth animals