Sunday, 6 January 2013
Facts about Mimic Octopus.
The Mimic Octopus is able to copy the physical likeness and movement of more than fifteen different species.
This species of octopus is known for its ability to mimic other creatures and this is the reason for its common name.
It grows up to 2 feet in length.
All octopuses have the ability change their color and texture. But the mimic octopus is the first octopus species ever observed to impersonate other animals, for example it was once observed to mimic a sea snake by black and yellow and burying six of its arms in sand and waving the other two in opposite directions.
It not only mimics their physical appearance but also their movements. Also, they change their color more rapidly than other octopuses.
It lives in Indo-west Pacific Ocean. The mimic octopus was officially discovered in 1998, off the coast of Sulawesi.
It commonly mimics the venomous lionfish. While swimming well above the bottom it spreads out all of its arms in a way that they look narrow and long fins of the lionfish. The mimic octopus mostly mimics the local predators in his area.
INTERESTING FACTS ABOUT LIGHTNING.
1. Every year, the Earth experiences an average of 25 million lightning strikes during some 100,000 thunderstorms. That’s more than a hundred lightning bolts per second.
2. Lightning bolts travel at speeds of up to 60,000 miles per second.
3. The temperature of a typical lightning bolt can reach 30,000 °C – that is about 5 times greater than the temperature of the surface of the Sun.
4. The energy contained in a single lightning strike can power a 100 Watt light bulb for 90 days.
5. Trees sometimes can take direct hits from lightning and not get burnt – the electricity passes over their wet surface and goes straight into the ground.
2. Lightning bolts travel at speeds of up to 60,000 miles per second.
3. The temperature of a typical lightning bolt can reach 30,000 °C – that is about 5 times greater than the temperature of the surface of the Sun.
4. The energy contained in a single lightning strike can power a 100 Watt light bulb for 90 days.
5. Trees sometimes can take direct hits from lightning and not get burnt – the electricity passes over their wet surface and goes straight into the ground.
INTERESTING FACTS ABOUT SLEEP.
1. The record for the longest period without sleep is 18 days, 21 hours, 40 minutes during a rocking chair marathon. The record holder reported hallucinations, paranoia, blurred vision, slurred speech and memory and concentration lapses.
2. The “natural alarm clock” which enables some people to wake up more or less when they want to is caused by a burst of the stress hormone adrenocorticotropin.
3. Tiny luminous rays from a digital alarm clock can be enough to disrupt the sleep cycle even if you do not fully wake. The light turns off a “neural switch” in the brain, causing levels of a key sleep chemical to decline within minutes.
4. Ducks at risk of attack by predators are able to balance the need for sleep and survival, keeping one half of the brain awake while the other slips into sleep mode.
5. Daytime naps improve memory! It also helps you remember important facts.
Naps also cut risk of heart disease.
2. The “natural alarm clock” which enables some people to wake up more or less when they want to is caused by a burst of the stress hormone adrenocorticotropin.
3. Tiny luminous rays from a digital alarm clock can be enough to disrupt the sleep cycle even if you do not fully wake. The light turns off a “neural switch” in the brain, causing levels of a key sleep chemical to decline within minutes.
4. Ducks at risk of attack by predators are able to balance the need for sleep and survival, keeping one half of the brain awake while the other slips into sleep mode.
5. Daytime naps improve memory! It also helps you remember important facts.
Naps also cut risk of heart disease.
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