Siamese fighting fish must be kept isolated because they will fight, immediately, often to the death. In an experiment, 2
fish were dropped in a lake. Would this be enough space? Were these tiny fish interested in exploring?
No, they immediately started fighting.
Lake Baikal in Siberia is the deepest lake in the world at about 1,642 meters. It holds around 20% of the world's unfrozen surface fresh water.
Canada has more lakes than any other country, with an estimated 60% of all the lakes in the world.
Mexico City is built on the ruins of Tenochtitlan, the Aztec capital founded in 1325 on an island in Lake Texcoco.
Unlike most cats, tigers love water. They are strong swimmers that often cool off in rivers and lakes and can even hunt in water.
The first Kentucky Fried Chicken franchise opened in 1952 in Salt Lake City, Utah, not Kentucky.
The Erie Canal, completed in 1825, connected the Great Lakes to the Hudson River and helped make New York City the nation's biggest port.
Lake Havasu City, Arizona, bought London Bridge in 1968 and rebuilt it there.
In 1900, engineers reversed the flow of the Chicago River to keep sewage out of Lake Michigan, the city's drinking water source.
Some of Mahatma Gandhi's ashes are kept at the Self-Realization Fellowship Lake Shrine in Pacific Palisades, California.
The Panama Canal uses locks to lift ships about 85 feet up to Gatun Lake and then lower them back down to sea level.
Lake Mead, created by the Hoover Dam, is the largest reservoir in the US by capacity.
Saturn's moon Titan has a thick atmosphere and lakes of liquid methane, and the Huygens probe landed there in 2005.
The Aztec capital, Tenochtitlan, was built on an island in Lake Texcoco and may have had about 200,000 people.
Crater Lake is the deepest lake in the US, about 1,943 feet deep.
Crater Lake formed about 7,700 years ago when the volcano Mount Mazama erupted and collapsed.
No rivers flow into or out of Crater Lake. It's filled almost entirely by rain and snow.
The "Old Man of the Lake" is a tree stump that has floated upright in Crater Lake since at least 1896.
Crater Lake became a national park in 1902, making it one of the oldest national parks in the US.
Wizard Island in Crater Lake is a small volcano that formed after the lake did.
Crater Lake gets an average of about 42 feet of snow a year.
The Klamath people's oral traditions describe the eruption that created Crater Lake.
Oregon's 2005 state quarter features Crater Lake.
Crater Lake is famous for its clear water, and in 1997 scientists could see a measuring disk about 142 feet down.
There are freshwater lakes behind the Oregon Dunes.