The blue whale can produce sounds up to
188 decibels. This is the loudest sound
produced by a living animal and has been
detected as far away as 530 miles.

The largest man-made lake in the U.S. is
Lake Mead, created by Hoover Dam.

The poison arrow frogs of South and
Central America are the most poisonous
animals in the world.

A new born blue whale measures 20-26
feet (6.0 – 7.9 meters) long and weighs up
to 6,614 pounds (3003 kg).

The first coast-to-coast telephone line was
established in 1914.

The Virginia opossum has a gestation
period of only 12-13 days.

The Stegosaurus dinosaur measured up to
30 feet (9.1 meters) long but had a brain
the size of a walnut.

The largest meteorite crater in the world is
in Winslow, Arizona. It is 4,150 feet across
and 150 feet deep.

The human eye blinks an average of
4,200,000 times a year.

Skylab, the first American space station,
fell to the earth in thousands of pieces in
1979. Thankfully most over the ocean.

It takes approximately 12 hours for food to
entirely digest.

Human jaw muscles can generate a force
of 200 pounds (90.8 kilograms) on the

The Skylab astronauts grew 1.5 – 2.25
inches (3.8 – 5.7 centimeters) due to spinal
lengthening and straightening as a result of
zero gravity.

An inch (2.5 centimeters) of rain water is
equivalent to 15 inches (38.1 centimeters)
of dry, powdery snow.

Tremendous erosion at the base of Niagara
Falls (USA) undermines the shale cliffs
and as a result the falls have receded
approximately 7 miles over the last 10,000

40 to 50 percent of body heat can be lost
through the head (no hat) as a result of its
extensive circulatory network.

A large swarm of desert locusts
(Schistocerca gregaria) can consume
20,000 tons (18,160,000 kilograms) of
vegetation a day.

The largest telescope in the world is
currently being constructed in northern
Chile. The telescope will utilize four – 26 ft.
8 in. (8.13 meters) mirrors which will
gather as much light as a single 52 ft. 6 in.
(16 meters) mirror.

The Hubble Space Telescope weighs 12
tons (10,896 kilograms), is 43 feet (13.1
meters) long, and cost $2.1 billion to
originally build.

The longest living cells in the body are
brain cells which can live an entire



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