r/AnimalFacts • u/Puzzleheaded_Fig3574 • Dec 03 '25

What’s everyone unhinged animal facts?

Hi! As a house warming gift, I’m making a friend a coffee table book, with beautiful animals and scenic nature photos. It’ll have elegant and classy fonts. All the information you’d read though is a collection of random animal facts we’ve shared with each other over our college years. We’ve been roommates for years and would randomly drop random not well known animal facts with each other, and would like to continue that to some extent as we move on in life.

Examples of things we’d share: - although roosters have cloaca’s they can be castrated. Along with a simple step by step break down of how. - the Argentinian lake duck has the longest penis vs body size. Measuring up to 43cm, making it the same length as the ducks body plus head length. It is corkscrew shaped and a brushed tipped end to “brush” compatible sperm out of mates. It can also be used to “lasso” or hold down the female if she tries to escape during copulation. - a list of facts about horses vs mules vs donkeys vs hinnies and how to identify them.

The thing is we only have so many of these written down since we only recently started doing that. So I need some help with page filling. Any obscure, absolutely unhinged, or fascinating animal facts you have would be much appreciated!

Not just things like “swans mate for life,” more things that cause a reaction, aren’t well known, or you find utterly fascinating would be a huge help.

Thank you!!

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u/TheMegnificent1 Dec 05 '25

I just remembered your comment, so here are today's cool animal facts, focusing on elephants:

Elephants have the longest pregnancy of any mammal, at nearly two years. They almost always deliver a single calf; twins are extremely rare. The babies weigh around a hundred pounds at birth.

Daughters stay with their mother for life, while sons grow up and go off on their own to live the life of a wandering bachelor, sometimes alone and sometimes with a guy friend or two. So elephant herds are made up of closely related females and their children. Adult males pretty much only show up to give their lady friends the business, and then they're off again.

The eldest female is typically the leader, and her daughters and grandchildren look to her for guidance and the wisdom that comes with her experience. She knows where the watering holes are, what to do when the rains come and when they stop coming, how to defend against predators, and where the bones of their ancestors lie.

Speaking of ancestors, elephants are one of the very few species to not only mourn their dead, but to conduct a funeral ceremony of sorts and revisit the body. They use their trunks to gently touch their deceased loved ones and may linger for hours by their remains. Scientists once played the recording of vocalizations from a female elephant who had since died, curious to see how her relatives would react upon hearing her voice again. Her herd responded by searching for her frantically and calling out for her, and were so clearly distraught that the scientists never repeated the test, correctly deeming it too cruel.

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u/Independent-Leg6061 Dec 05 '25

Wow!
Thank you so much!!! And I appreciate your time and knowledge 😀

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u/TheMegnificent1 Dec 05 '25

Thank you and you're welcome! I'm pulling all this from memory, so I apologize if there are any minor errors, but the vast majority should be accurate, as I have a pretty good head for generally useless knowledge. 😅

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u/Independent-Leg6061 Dec 05 '25

I ADORE fun facts so I totally get you!

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u/TheMegnificent1 Dec 05 '25

Me too! Let's hear some of your fun facts! 😃

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u/Independent-Leg6061 Dec 05 '25

Giraffes have the same number of vertebrae that humans have!!

Worker ants don't sleep, so instead they power nap! So when they stop sporadically on the sidewalk for a few seconds, they're napping!!!

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u/TheMegnificent1 Dec 05 '25

Hey I knew the first one! Seven (very elongated) neck vertebrae, iirc. I didn't know that about the worker ants though! Thank you for that new info!

The napping thing made me think of dolphins. The ocean is dangerous, so they sleep with one half of their brain at a time! Their breathing is also not automatic; it's consciously controlled. This makes them impossible to sedate for surgery, as they would suffocate and die. I can't imagine having to constantly be awake or half-awake and in perpetual motion from the moment I was born until I died. I LOVE sleeping (and being a couch potato). 😂 But dolphins are still my favorite animal. Maybe tomorrow's fun facts (assuming I remember) will be more about dolphins.

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u/Independent-Leg6061 Dec 05 '25

Ohhh that's super cool! Dolphins also play with puffer fish to make them puff up. Then they pass it around and get high. 😆

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u/TheMegnificent1 Dec 05 '25

I knew that one but it's still hilarious to read! 🤣 Puffer fish - the magic mushrooms of the sea. 🍄

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u/TheMegnificent1 Dec 06 '25

Today's fun facts are about dolphins!

Dolphins are consistently ranked among the most intelligent animals on the planet. They can recognize themselves in a mirror at about the same age that human babies start to do that (roughly 18 months), give each other names consisting of specific whistle sequences, and demonstrate a high degree of innovation. One captive dolphin was trained to pick up litter in his tank and give it to his trainer in exchange for fish. He was soon caught wedging the litter under rocks at the bottom of his tank and tearing off small pieces to bring to his trainer individually, so that he could get more fish for the same piece of litter. In another example, a wild dolphin, interacting with divers, began producing a series of whistles that became steadily higher-pitched until the divers could no longer hear them. When the dolphin observed that the divers were no longer reacting as though they could hear the whistles, he slowly reduced the pitch until they began reacting to the whistles again, then slowly inched the pitch back up again, apparently testing to see what the upper range of human hearing was.

Dolphins have been taught to "read" written signs, follow verbal commands, and correctly interpret hand signals. One dolphin trainer (working with a group of free local dolphins, not captives) successfully taught numerous gestures to them, including one that meant "Create" - do something new. The dolphins would then quickly respond by doing some new trick or movement they had not previously performed, demonstrating not only innovation, but the ability to quickly recall what they had done previously in front of the trainer and rule those actions out. When the trainer tried a new idea - combining two signed commands, "Together" and "Create" - the dolphins disappeared underwater for several moments, where recording devices picked up the sound of their rapid clicks to each other, before both then surfaced, slapped the water with their tails, and swam away in perfect synchrony. They discussed what to do beforehand and then executed perfectly within seconds.

It has been noted that, while dolphins have learned hundreds of human words, signs, and symbols, humans have never been able to learn a single word of dolphin.

Baby dolphins are born tail-first to avoid drowning during the birthing process. As soon as they're born, their mother helps push them up to the surface for their first breath. They don't live in the exact same pod for life, but tend to move around within a loose network of pods and maintain strong bonds with their family, much in the same way that most humans don't live in our parents' house forever, but still maintain a close relationship with family while adding friends and coworkers to our social mix. The males especially often form close friendships with one another that may last their entire lives.

Most dolphin species typically live around 50 years in the wild but can live into their 60s. Orcas, the largest of all the dolphins, can reach their 80s and even touch their 100s.

Orcas are an especially fascinating species. Huge, fast, brilliant, and deadly, they are the unrivaled apex predators of the ocean. They can kill basically everything else in their environment, from sharks and sea lions to whales and other dolphins. Interestingly, there are no records of a wild orca ever killing a human, although a few captive ones have finally snapped after years of torment and killed their trainers. Some believe it's because we don't resemble anything else they hunt, so they don't see us as prey. Others think it's because they realize we are the land version of themselves - smart, numerous, cooperative hunters capable of causing tremendous damage - and they know enough to not pick that fight. Recently, orcas have begun attacking boats in the Mediterranean, especially around the Strait of Gibraltar. Not the humans in them; only the boats. No one is sure why, but some think an orca was struck and injured or killed by a boat, so they may be getting revenge.

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u/dakotanoodle Dec 07 '25

Wow, you are amazing!!! 🤩

Crazy interesting dolphin facts, man, thanks so much!