An ocean is the last place youd expect to find a freshwater lake. As strange as it may seem, the Arctic Ocean is home to a lake roughly twice the size of Lake Victoria, one of the largest freshwater lakes in the world. This arctic lake is located in...
Heres how Knab explained it: males gather around some landmarka cornstalk, perhaps the head of an unsuspecting humanand wait for eligible females. When a female enters the swarm, the males immediately pick up her flight tone, which is different from...
Have you ever walked into a swarm of insectsgnats, mosquitoes, or one of their many cousinsand then found yourself unable to shake the swarm? You fake left, go right, but the little buggers still hover above. As if it that werent bad enough, did you...
Heres how Knab explained it: males gather around some landmarka cornstalk, perhaps the head of an unsuspecting humanand wait for eligible females. When a female enters the swarm, the males immediately pick up her flight tone, which is different from...
Why are there no restaurants on the moon? Great food. No atmosphere. The atmosphere is the layer of gases that surrounds a planet or other massive body. Although our atmosphere extends for tens of miles, almost ninety-nine percent of it is within eig...
Take two nails and scrape them together vigorously. Now touch the place you were scraping. Its hot! Let them cool and try it again. Its hot again! You could do this all day and the nails would never stop growing hot. If heat were a liquid, there woul...
At one time it was believed that heat was a liquid. Sure, that sounds kind of crazy, but if you think for a second, you might see why. Suppose you have an object thats very hot say a metal spoon thats been sitting in hot coffee. Pick it up and you ca...
Plants attract fruit eaters，or frugivoresby packing valuable resources into their fruits like sugar and water or important nutrients such as carotenoids, vitamins and minerals. Plants often target specific animals that will give their seeds the bes...
Usually a green, sour fruit is just a fruit thats not ripe yet. If you left a lime on the tree longer would it eventually change color and become sweet, like an orange? Actually, limes do become much more yellow and less sour as they ripen. Under rip...
But if you kept recycling urine by urinating and drinking it multiple times, wouldnt those minerals eventually build up until the urine was no longer safe? Over several days, your urine would become saturated with minerals. And drinking it would real...
