Splitting an atom is called nuclear fission, a process that was discovered in 1938; the repeated splitting of atoms in fission is called a chain reaction. While most people do not have the equipment to do this, if you've ever been curious how it's done, here's an overview.
Protect the Critically Endangered Goliath Grouper from Killing in Florida July 4, 2017 In the earlier part of the last century, Atlantic goliath groupers were abundant from Florida to Brazil and throughout the Gulf of Mexico and Caribbean Sea. If you have been lucky enough to be in the water with these creatures, then you appreciate their unflappable personality and awe-inspiring size, which reaches up to 8 feet and 1,000 pounds.
The majority of leeches thrive in freshwater environments, though some species can be found on land and in the sea, too. Of the 700 different species of leeches, 100 are marine, 90 are terrestrial and the remaining 510 prefer habitats like your lake or pond. One of the more common leeches found in North America is the Freshwater Leech or North American Leech. This brownish-green worm with black and red spots grows to about 2 inches long and lives in lakes, marshes and slow-moving streams.