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Even the most iconic creatures can have special abilities or anatomical traits that often go unnoticed by the general public, with the media rarely showcasing them.
10. Jellyfish Possess Eyes
We typically think of jellyfish as transparent, brainless blobs with tentacles, which is true for many species. However, the deadly box jellyfish, or Cubozoa, boasts surprisingly sophisticated eyes, located at each corner of their box-like body. Despite lacking a centralized brain, these jellyfish are believed to detect light, shadow, shape, and motion, allowing them to move more purposefully than their blind relatives.
9. Frogs Have Short, Reversed Tongues
Cartoons often depict frogs and toads with long, thin, darting tongues like a chameleon’s, shooting out to catch insects from a distance. This, however, is purely fictional—no amphibian has a chameleon-style tongue.
What frogs and toads actually possess is a broad, blunt tongue, much like ours, but it’s attached backward, as seen in the video above. The tongue is fixed at the front of the mouth and flips out to smack prey from above, much like an adhesive flyswatter.
Interestingly, when a frog swallows, its eyeballs move into its mouth to help push food down its throat.
8. Mantises Have Clawed Feet
Praying mantises are well-known as large, intimidating, predatory insects, often appearing as monstrous creatures in movies and video games. However, many people still misinterpret them. Instead of picturing them with sickle-shaped or saw-like forelegs ending in a single talon, mantises actually have forelegs that continue into regular, clawed feet, just like their other four legs.
7. Spiders Have Real Mouths
Spiders, like mantises, are well-known predators but are often misrepresented in media. Even those who are relatively familiar with them may believe that spiders feed directly through their two fangs, resembling vampires, but the process is actually more bizarre.
After biting and injecting venom through its fangs, a spider then regurgitates digestive enzymes from its true mouth—a small, toothless, jawless opening hidden behind its fangs—and slurps up the resulting mixture like a smoothie. If necessary, the spider can use its fangs and pedipalps to further crush and tear the meal, but the actual mouth is a tiny pinhole.
6. Ticks Have Eyes On Their Backs
Ticks aren’t exactly creatures most people like to dwell on for too long. But if you've ever wondered where a tick’s 'head' is, you’ve probably guessed it’s that small knob at the front of its body where the mouthparts are.
However, like all arachnids, a tick’s 'head' and 'thorax' are fused into a single large section where the legs attach. Ticks not only have a pair of eyes, but these eyes are located on what most people might assume is the tick’s midsection, almost between the second and third pair of legs.
5. Elephants Have Breasts
Recently highlighted in viral photos, female elephants are one of the few mammals with a single pair of teats, located on their chest and surrounded by thick, fatty tissue pads. These breasts are just like the ones humans have, a setup you won’t even find in our closest primate relatives. The breasts protrude far enough to allow a baby elephant to nurse while its massive mother stands tall.
4. Sperm Whales Lack Upper Teeth
The common image of a sperm whale, the largest of all toothed whales, is one of a creature with rows of blunt, sharp teeth in both its upper and lower jaws. You’ll find this portrayal on covers of Moby Dick, in Disney films, and nearly everywhere else. However, real sperm whales don’t actually chew their food.
Sperm whales feed exclusively on squid, swallowing them whole or tearing off tentacles to swallow separately. Their teeth are not used for chewing; instead, they help hook and pull at the squid’s soft flesh. Only the whale’s lower jaw has teeth, while the upper jaw has empty sockets where the teeth fit when the mouth is closed.
3. Snails Have The Most Terrifying Teeth Of All
Snails and slugs may seem like the least likely animals to bite you, and that’s mostly true. They lack jaws and can’t actually chew or bite. But that doesn’t mean they don’t have teeth—thousands of razor-sharp ones.
These teeth are arranged in hundreds of rows on a muscle called the radula, which functions like a tooth-covered tongue. It works similarly to a multi-blade razor, scraping off thin layers of food. Gastropods, which include herbivores, omnivores, scavengers, and predators, use the radula to scrape both tough plants and animal flesh with ease.
2. Geese Have Fangs
Geese are often portrayed as harmless, cute, and somewhat ridiculous, but you definitely wouldn’t want to challenge one of these large, territorial birds. Birds haven't had true teeth in millions of years, but many species, including geese, developed tooth-like serrations on their beaks and even their tongues. These help them strip plant matter and sift food from water, but they can also tear the skin of anyone foolish enough to provoke them.
1. Fish Have Four Nostrils
Humans, birds, reptiles, and amphibians typically appear to have only two nostrils. However, these nostrils quickly divide into two separate internal passages—one primarily for smell and the other to assist with breathing—giving us a total of four nostrils. In most fish, which possess a more primitive skull structure compared to land-dwelling tetrapods, these four nostrils remain distinct and visible on the outside of their bodies.
