The most dangerous animal on the planet is a mosquito.
At the top of the risk list from mosquitoes is malaria. Even after decades of battling against the mosquito carrier, an amazing 40% of the world's population, mostly those living in the world's poorest countries, is still at risk of malaria. The disease causes more than 300 million acute illnesses each year and over a million deaths annually, mainly children under five.
The flea can jump 350 times its body
length (over seven inches high and thirteen inches long). It's like a human jumping the length of a football field.
The flea when jumping accelerates 50 times faster than a space shuttle. Without its outer shell it would get smashed by the velocity of the jump.
Trails leading away from an ant nest always fork at a 60-degree angle, similar to a capital Y. On their way out to pick up food, they take either the left or right branch (30 degrees off their current heading). On their return home, ants need only stay as straight as possible to find their nest.
A hive of bees must pollinate 2 million flowers to collect the nectar to make one pound of honey. For this they must fly a total distance of approximately 55,000 miles -- or more than twice around the globe.
Honey is effectively regurgitated nectar that has been partially digested by a honeybee. Mmmmm...
Insects make up more than half of all living things on Earth, comprising over one million species. For every human, there are 200 million insects. This figure does not include non-insect arthropods, such as spiders and scorpions.
There is a difference between a poisonous snake and a venomous snake.
If you bite a snake and it makes you sick, it's poisonous. If a snake bites you and it makes you sick, it's venomous. Hence, rattlesnakes and cobras aren't poisonous, they're venomous.
A python in the Everglades split itself in half after trying to eat a live 6-foot alligator.
The 13-foot Burmese python was found with the gator's hindquarters protruding from its midsection. Pythons are not native to the Everglades -- rather, they have been introduced via pet owners who abandoned their pythons.
Warning: Armed dolphins are now loose in the Gulf of Mexico!
Dolphins have been trained in attack-and-kill missions since the Cold War. The navy launched the classified Cetacean Intelligence Mission in San Diego in 1989, where dolphins, fitted with toxic dart harnesses and small electrodes planted under their skin, were taught to patrol and protect Trident submarines in harbour and stationary warships at sea. In the aftermath of Hurricane Katrina, several of these dolphins are thought to have been let loose inadvertently.
The mosquito's probiscis is very sharp and thin, so it's often not even felt. After sucking in about 5 microliters (5 x 10-6 liters), the mosquito flies off. Unfortunately, some saliva remains in the wound causing swelling and itching.
Thai fishermen netted a 646-pound catfish believed to have been the world's largest freshwater fish ever caught in Thailand, a researcher said Thursday.
The nearly 9-foot-long Mekong giant catfish was landed May 1 by villagers in Chiang Khong, a remote district in northern Thailand, and weighed by Thai fisheries department officials, said Zeb Hogan, who leads an international project to locate and study the world's largest freshwater fish species.
The starfish is the only animal that can turn its stomach inside out.
The cardiac stomach, which is a sacklike stomach located at the center of the body, may be everted - pushed out of the organism's body and used to engulf and digest food. Some species take advantage of the great endurance of their water vascular systems to open the shells of mollusks (clams, mussels, etc.), and inject their stomachs into the shells. Once the stomach is inserted inside the shell it digests the mollusk in place!
Deb: What are you drawing? Napoleon Dynamite: A liger. Deb: What's a liger? Napoleon Dynamite: It's pretty much my favorite animal. It's like a lion and a tiger mixed... bred for its skills in magic.
Tiny ultra-sensitive ears can detect the movement of prey within a quarter of a mile!
Hypersensitive nostrils can detects a single drop of blood in the water up to 50 yards away. The jaws of a great white can exert 42,600 pounds per square inch of pressure - 24 times the power of a jackhammer.
Great whites have 50 triangle-shaped teeth at any given time. The narrow bottom ones grab and hold prey while the top row cuts the flesh. As front teeth are broken or lost, they are replaced by the new ones from multiple rows of reserves.
Steve Irwin, the Crocodile Hunter, fights crocodiles, venomous snakes, and sharks but is scared of birds.
Crocodile Hunter is scared of parrots, because they always bite him and have "nearly torn his nose off", while he says he's been "catching crocodiles since I was nine".
Some dogs have tails (Labradors, Dachshunds) and others don't (e.g. Rottweilers).
It's not because some grow tails and some don't. Most breeds got their start in docking of tails to avoid a tax that was charged on "luxury" dogs - aka pets. Since working dogs weren't taxed and typically had their tails docked, breeders began docking tails to avoid paying the tax.