Eagles – Best Eyes in the Animal Kingdom To put that into perspective, an eagle has the visual acuity of 20/5 – meaning that it can see at 20 feet what a human with 20/20 vision would need to be 5 feet away from to see. By this standard, an eagle's visual acuity is 4 times stronger than ours.
Mantis shrimps (Stomatopoda)
Mantis shrimps probably have the most sophisticated vision in the animal kingdom. Their compound eyes move independently and they have 12 to 16 visual pigments compared to our three.
Cheetahs, the fastest mammals on Earth, are also known for having a vision of the best quality. There are several aspects to cheetah vision: Due to the location of their eyes, they have binocular vision. Cheetahs can spot prey that is located up to 5 km away.
The critter with the world's best color vision (as far as we know) is the bluebottle butterfly. Where we have three different types of cones to detect color, they have a whopping fifteen, some of which see in the UV spectrum.
If you encounter an aggressive lion, stare him down. But not a leopard; avoid his gaze at all costs. In both cases, back away slowly; don't run.
The mantis shrimp's visual system is unique in the animal kingdom. Mantis shrimps, scientifically known as stomatopods, have compound eyes, a bit like a bee or a fly, made up of 10,000 small photoreceptive units.
What ethnicity has the best vision? As a group, the Aborigines have significantly better visual acuity than the Europeans. This was true for both monocular and binocular vision. Some Aborigines have acuities below the previous postulated threshold levels.
Cats also have better near-vision than dogs but still less than humans. The large and elliptical shape of their corneas helps them in gathering light. The extra rods in their eyes also make it possible for them to sense any motion from prey in their peripheral vision, as well as enhancing night vision.
The rarest animal in the world is the vaquita (Phocoena sinus). It is a kind of critically endangered porpoise that only lives in the furthest north-western corner of the Gulf of California in Mexico.
The new research shows that dolphins have the longest memory yet known in any species other than people. Elephants and chimpanzees are thought to have similar abilities, but they haven't yet been tested, said study author Jason Bruck, an animal behaviorist at the University of Chicago.
While Skinks are burrowing or eating insects they close their eyes. Skinks have a permanent transparent eye -lid that is cover over their eyes. With the help of it they close their eyes. As this lid is transparent, they can see with their eyes closed.
Giant squid have the largest eye in the animal kingdom. At up to 10 inches in diameter, people often describe it as the size of a dinner plate -- or, in other words, as big as a human head.
Why tardigrades are so damn tough. It's important to note: Tardigrades are basically indestructible only when they enter a special state called cryptobiosis. In harsh environments, the animals tuck in their legs and expel all moisture from their bodies. In this state, they're called tuns.
Eagles – Best Eyes in the Animal Kingdom
To put that into perspective, an eagle has the visual acuity of 20/5 – meaning that it can see at 20 feet what a human with 20/20 vision would need to be 5 feet away from to see. By this standard, an eagle's visual acuity is 4 times stronger than ours.
A honey badger (Mellivora capensis) makes the list of toughest animals because it doesn't back down when approached by a predator – even if it's a lion or a leopard!
The reasons why super sight developed are not completely known, but are probably due to evolutionary pressures over millennia. "As a hunter-gatherer good vision, to be able to see a kangaroo lying in the shade, or find a waterhole or whatever it would be critically important," Professor Taylor said.
And while Aboriginal and Torres Strait Islander children – especially those living in remote areas – often have better vision than non-Indigenous children, as they get older they encounter more eye health problems.
Rhinoceroses
Even though rhinos can charge up to 30 miles per hour, they can't distinguish between a human and a tree at 15 feet. Unless rhinoceroses can clearly hear and smell you, they have no way of knowing where you are in physical space.
Leech: Leech is an annelid. Leech's external and internal segmentation do not correspond to each other. If the internal body is examined, it can be seen that the body is divided into 32 parts or segments which have their own corresponding brain.
Ocean quahog clam (Arctica islandica): 507 years old
The individual animal that holds the confirmed record for the longest-lived is a clam from Iceland, found off the coast of the island nation in 2006, which was 507 years old, calculated by counting the annual growth bands in its shell.
Star–Nosed Mole
Star-nosed moles are blind and rely on sensory organs to feel their way around. The star-nosed mole is an incredibly unique animal.