Monday, May 19, 2014

The Aquatic Archers....!

Archerfish are remarkably accurate in
their shooting; adult fish almost always hit the target on the first shot.
They can bring down insects and other prey such as grasshoppers, spiders and butterflies, on perches, up to 3 m above the water's surface. This is partially due to their good eyesight,but also their ability to compensate for the refraction of light as it passes through the air water interface when aiming for their prey. They typically spit at prey at a mean angle of about 74 degrees from the horizontal, but can still aim accurately when spitting at angles between 45 and 110 degrees.
Photo: The Aquatic Archers....!

Archerfish are remarkably accurate in
their shooting; adult fish almost always hit the target on the first shot.
They can bring down insects and other prey such as grasshoppers, spiders and butterflies, on perches, up to 3 m above the water's surface. This is partially due to their good eyesight,but also their ability to compensate for the refraction of light as it passes through the air water interface when aiming for their prey. They typically spit at prey at a mean angle of about 74 degrees from the horizontal, but can still aim accurately when spitting at angles between 45 and 110 degrees.

~Buzz~

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Simulating with Proteus

https://youtu.be/GDxYzqvTcnI