The Lab of Dr. During courtship, the snails will decide who gets to be more father than mother. Yellow males tend not to even form exclusive territories Instead they use stealth to find unaccompanied females with whom to mate. They have to keep hovering and feeding even if it's windy or raining, a remarkable feat considering most of these birds weigh less than a nickel. Sometimes aggressive territorial displays are not enough to dissuade invaders so side-blotched lizards will resort to fighting. There are almost 2, scorpion species, but only 30 or 40 have strong enough poison to kill a person. These cameras see otherwise invisible cancerous tissues by detecting their polarization signature, which is different between diseased and healthy tissues.
Male salmon swim alongside the female and release a cloud of sperm at the same. These avian acrobats are the only birds that can fly sideways, backwards and hover for long stretches of time. How deadly are death cap mushrooms? The sex life of the common snail is anything but ordinary. Jim Pitts Research by: In , malaria, the deadliest mosquito-borne disease, killed roughly , people, mostly children under the age of five and pregnant women in sub-Saharan Africa. Banana slug slime contains nasty chemicals that numb the tongue of any animal that attempts to nibble it, discouraging predators like raccoons, who have to go to the trouble of removing the slime if they want to eat the slug. With their spring-loaded, weaponized legs, these predators can crack a snail shell or harpoon a passing fish in a single punch. These mating rituals were first described more than years ago. But the more monogamous blues males are more vigilant and chase sneaky yellow males away. Motherhood requires a much greater investment of time, energy, and resources. Orange males tend to be the biggest and most aggressive. Home to one of the most listened-to public radio station in the nation, one of the highest-rated public television services and an award-winning education program, KQED is also a leader and innovator in interactive media and technology, taking people of all ages on journeys of exploration — exposing them to new people, places and ideas. They have small sharp teeth and will lunge at each other inflicting bites and headbutts. Scorpions are members of the class Arachnida and are closely related to spiders, mites, and ticks. A Valentine's Special https: Scale it up to human size and the love dart would be the equivalent of a inch knife. Dramatic, rare, and exclusive, nature doesn't get more exciting than this. It's Okay to Be Smart: This is a type of mating strategy where adults die after a single mating episode is called semelparity. So the young Inga tree hires ants as bodyguards to protect its vulnerable leaves. Can scientists find a way to stop it? Skeleton Action Shots - No, this doesn't refer to dinosaur nudes, but it is probably the closest real life thing we have to that, and is still extremely strange. From Battle of the Sexes in the Animal World. Another set of needles, the mandibles, hold tissues apart while the mosquito works. Yellow males tend not to even form exclusive territories Instead they use stealth to find unaccompanied females with whom to mate. And they can instill an almost primal sense of disgust and revulsion.
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