1. There is a type of salamander that can have a 3-year-long pregnancy.
Unlike the majority of salamanders and other amphibians, the alpine salamander doesn't lay eggs and instead gives birth to fully developed young after 2- to 3-year-long pregnancies.
2. Female guppies can give birth every 30 days, each time to a batch of 20-50 baby guppies.
Female guppies can mate and give birth as soon as they're 2 or 3 months old.
3. When a lioness is in heat, she can mate up to 100 times per day, or about every 17 minutes.
Each mating lasts an average of 21 seconds, which, tbh, same.
4. Some animals can change color based on the foods that they eat.
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Flamingos and salmon, for example, eat a lot of blue-green algae that contains carotenoids, which are the pigments that make them so pink.
5. The southern dumpling squid can have sex for up to three hours — which, as you may guess, is extremely exhausting.
Afterwards, squid have significantly less energy for foraging, avoiding predators, and swimming. (Also, same.)
6. SOME SPIDERS CAN FLY, APPARENTLY??
A 2015 study found that jungle spiders can glide and steer themselves when dropped from 65-80 feet above the ground. Cool.
7. Meanwhile, the oldest spider in the world recently died at a ripe old age of 43.
Impressive, because the average life expectancy of trapdoor spiders is 20 years.
8. The average blue whale's penis is 8-10 feet long.
Meanwhile, its testicles can weigh up to 150 pounds EACH.
9. The octopus is basically a master of disguise.
Octopi can get in and out of VERY small holes and camouflage themselves by changing color, skin texture and even size, depending on the situation. It's all thanks to the rare combination of intelligence and invertebrate body sneakery.
10. Under a UV light, most scorpions can glow in the dark.
Scientists aren't really sure why, though it could be related to how scorpions respond to moonlight and when they decide to look for food.
11. Dolphins give themselves "names."
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Research shows that dolphins use distinctive whistles to identify each other.
12. We have unique fingerprints, but some animals have unique "nose prints."
Cats and dogs can be identified by their nose prints.
13. Cows don't like to be alone.
They're social creatures who form close bonds with a few "preferred individuals" and get stressed out when they're separated from their best friends.
14. Rats are ticklish.
According to scientists, rats also emit sounds that can be considered as rat laughter when they're tickled.
15. Duck quacks DO echo.
You might not notice a quack's echo because it's quiet to begin with, or because quacks have a fading sound — and the sound that comes back is too low level to hear.
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This post was translated from Portuguese.
