Crosswords3 mins ago
animals
2 Answers
which animal has the largest eyes squid? koala?
owl?
can sharks see at night?
how many eyelids do camels have?
how many of its own feet can a donkey see at the same time?
what shape are goats pupils?
do snakes keep their eys open when asleep?
owl?
can sharks see at night?
how many eyelids do camels have?
how many of its own feet can a donkey see at the same time?
what shape are goats pupils?
do snakes keep their eys open when asleep?
Answers
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About vision has this to say relative to eye size:
Scientists say that a giant squid (Architeuthis dux) living in the depths of the ocean has the largest eyeballs of any living creature today. The typical giant squid's eye can measure up to 10 inches in diameter, about half the size of a basketball.
On land, the record for biggest eyeballs is held rather surprisingly by the ostrich. The ostrich eye has a diameter of about 2 inches, roughly the size of a ping-pong ball.
The largest eyeballs of any creature ever apparently belonged to an ancient marine animal, known as an ichthyosaur that lived millions of years ago. Scientific American reports that this undersea creature had eyes about the size of bowling balls, which enabled keener eyesight within murky ocean depths....
Scientists say that a giant squid (Architeuthis dux) living in the depths of the ocean has the largest eyeballs of any living creature today. The typical giant squid's eye can measure up to 10 inches in diameter, about half the size of a basketball.
On land, the record for biggest eyeballs is held rather surprisingly by the ostrich. The ostrich eye has a diameter of about 2 inches, roughly the size of a ping-pong ball.
The largest eyeballs of any creature ever apparently belonged to an ancient marine animal, known as an ichthyosaur that lived millions of years ago. Scientific American reports that this undersea creature had eyes about the size of bowling balls, which enabled keener eyesight within murky ocean depths....
Apparently donkeys can see all four feet at once.
Goat pupils are horizontal, like a sheep:
http://biology.clc.uc.edu/graphics/taxonomy/an imals/mammalia/Domestic%20Goat/JSC%20970505%20 Goat%20Eye%201.jpg
Camels have theree eyelids for each eye: top, bottom and third (bit like a cat).
Snakes can't blink - this is one of the differentiating features of snakes and lizards - so I presume they keep their eyes open when they sleep!
Goat pupils are horizontal, like a sheep:
http://biology.clc.uc.edu/graphics/taxonomy/an imals/mammalia/Domestic%20Goat/JSC%20970505%20 Goat%20Eye%201.jpg
Camels have theree eyelids for each eye: top, bottom and third (bit like a cat).
Snakes can't blink - this is one of the differentiating features of snakes and lizards - so I presume they keep their eyes open when they sleep!
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