Neotrogla is fly-like insects native to Brazil. They are the first species that are known to have swapped genital structures. Copulation lasts 40-70 hours during which the female uses spines on her gynosome (penis) to latch onto the male and if forced apart, his abdomen can be ripped apart from his body.
27. The Suriname toad species gives birth from their back by having eggs embedded into their skin.
28. Seahorses are among the only species in which the male gives birth and takes care of the young.
29. The Sun Bear is the world’s smallest bear species that grows to only 28 inches tall. Sun bears are shy and reclusive and may bark if startled. They prefer to spend their time away from people (and predators), sunbathing and sleeping in trees.
30. Bats often use pitcher plants as a toilet and plant are also benefited by it. Some species of bats take a nap and a dump inside a pitcher plant and the pitcher plant gets nutrients from the feces.
The male of a tiny Australian marsupial species called the antechinus goes into a mating frenzy once in its short life and has sex with as many females as possible until his body disintegrates.
32. There is a species of moth called the Bagworm moth. They build cocoons out of sticks and small twigs. These cocoons can sometimes look like small log cabins. After metamorphosis, the female of the species spends their whole lives, of a few weeks, in the little home they made.
33. There is a species of fungus, Fusarium oxysporum, that has the ability to dissolve gold and excrete it onto its surface, encrusting itself in gold.
34. One species of freshwater turtle has actual flippers like a sea turtle. Called the pig-nosed turtle, it lives in Indonesia, Papua New Guinea, and Australia. Extremely aggressive, little studied, and difficult to keep in captivity, it is rarely seen in aquariums.
35. A species of pied hoverfly named Scaeva pyrastri has copied the appearance of a wasp but it’s white. They do this to fool their natural enemies into not eating them because wasps are poisonous.
There is a species of wild pigs (Babirusa) with tusks that grow up and inwards, curving directly towards their forehead. If the male's tusks aren't worn down by regular use, they will grow until they pierce the skull, killing the boar.