Wouldn't this be a tremendous advantage?
It sure works for COPS these days!!
2006-10-26 14:48:29 · 8 answers · asked by fresh2 4 in Science & Mathematics ➔ Biology
For mammals and birds, our own body heat prevents us from evolving this innovation, as we could not see anything but the hot insides of our eyeballs.
Snakes already have heat vision.
2006-10-26 17:55:21 · answer #1 · answered by Pseudo Obscure 6 · 2⤊ 0⤋
Infrared eyesight would allow an animal to see only objects that emit heat. Animals have several optical adaptations that either gather larger amounts of light than the human eye can gather, and/or amplify the effect of light gathered by the eye. These methods allow an animal to see everything in reduced light situations, not just warm objects.
Also, some animals, especially snakes, have infrared detection abilities that don't involve the eyes. And other animals have yet other means of "seeing" in the dark, like the sound reflection methods used by bats.
2006-10-26 23:52:33 · answer #2 · answered by PaulCyp 7 · 2⤊ 0⤋
Though not technically vision. Snake's sense infrared waves to sense when a warm blooded creature comes near. Also, some insects can see in ultraviolet light.
2006-10-26 21:51:49 · answer #3 · answered by LaxPlayer35 1 · 2⤊ 0⤋
Think of the expense and the lack of selection pressure to do so. Are there not a few animals that can see into the infrared?
2006-10-26 21:51:47 · answer #4 · answered by Anonymous · 1⤊ 0⤋
Seems like to do that and still have visible light vision would make the vision in both bands kind of crappy, so that overall, the animal is either a less-efficient predator or too vulnerable prey.
2006-10-26 21:54:01 · answer #5 · answered by Ren Hoek 5 · 1⤊ 0⤋
many animals that NEED it to survive have adapted this trait. Some animals do have infrared and ultraviolet vision, where they can see more them the spectrum we see. Just like dogs who can hear higher pitches then us.
2006-10-27 10:35:24 · answer #6 · answered by Take it from Toby 7 · 0⤊ 0⤋
Very Little infrared night vision in animal kingdom, if alot of this vision exist, animals will crash into rocks and more deaths.
2006-10-26 22:35:28 · answer #7 · answered by spir_i_tual 6 · 1⤊ 1⤋
some animals do. notice cats can see in the dark. this is because heir pupil can get big enough to seek any small light. we cannot. and also, snakes sence by heat and vibration. in the animal life, there are no "seeing through walls" and such. it's just not possible for a body to do.
2006-10-26 23:25:25 · answer #8 · answered by aznslinckey 1 · 0⤊ 2⤋