Why do robins seem to stop and listen. Do they hear worms or feel them with their feet?
367499
Good question. Not hearing; sight. They seem to be hearing movement, but birds go by sight. I thought the same thing.
32867
About 75 percent scuttle sideways, the better to keep an eye on approaching predators.\n\nAlso, Because that's the way their legs bend. Muscles work in pairs. A muscle can only retract, or pull; to lengthen again it must relax and be pulled back by another 'antagonistic' muscle.
675987
They let out a VERY high pitched "squeak"...the sound of it echoes off of whatever objects are around them and they find their way through caves and stuff by the sounds they hear.  Hard to explain...I'll let someone else explain it in more detail.
350661
i think its because they feed on small fish that are visible from over the sea, or maybe they love what the humidity does to their hair/ feathers\naksugar06 what the hell are you talking about
285353
Yes they can. Their senses are much more acute than ours. They can hear the rumblings below and the first to be aware are birds. This also triggers off the bears instincts that something abnormal will happen though they don't know exactly what.
1004921
Sound is a sense. The tree's fall causes vibrations, but, unless something is around to interpret those vibrations as sound, it is never "heard."
1098497
All birds eat a share of grit,sand and dirt to help with their digestion. There are also small insects you can't see but they can.
445484
They are likely following air currents-Flies dont think about where they are going-they dont really "think" at all, in terms of making decisions.  THey just have simple reactions to ari currents, heat, light, and chemical sensations (food)-If they are circling, its because there are air current moving in a circular motion, and they are following those.
623158
I suggest you just let them be ! The crows warn most birds that there is a preditor around by squeeling,In my yard they live in harmony ! with the yellow finch,cardinals,sparrows,and many more birds!
1110200
It sounds like the robins nest was victimized by a mocking bird.  \n\nMocking birds will knock eggs out of nests in order to make it their own.  If the robin caught the mocking bird in the act there would have been an altercation.  \n\nIf a robin's eggs become under suspect in anyway, then the robin will abandon the eggs.\n\nIf you are able to get the egg to hatch taking care of a baby bird is a 60 minute an hour, 24 hour a day, 7 days a week project.  \n\nIf you have heated the egg to the point where it is "very hot" then the egg is most likely dead.  It should normally be just a little warmer than room temperature.  (About 85-90 degrees air temperature.)
231920
Animals have keen senses that help them avoid predators or locate prey. It is thought that these senses might also help them detect pending disasters. Several countries have conducted research on the detection of earthquakes by animals.\n\nThere are two theories as to how animals may be able to detect earthquakes. One theory is that animals sense the earth's vibrations. Another is that they can detect changes in the air or gases released by the earth. There has been no conclusive evidence as to how animals may be able to sense earthquakes. Some researchers believe the animals at Yala National Park were able to detect the earthquake and move to higher ground before the tsunami hit, causing massive waves and flooding. \n\nOther researchers are skeptical about using animals as earthquake and natural disaster detectors. They site the difficulty of developing a controlled study that can connect a specific animal behavior with an earthquake occurrence. The United States Geological Survey (USGS) officially states: *Changes in animal behavior cannot be used to predict earthquakes. Even though there have been documented cases of unusual animal behavior prior to earthquakes, a reproducible connection between a specific behavior and the occurrence of an earthquake has not been made. Because of their finely tuned senses, animals can often feel the earthquake at its earliest stages before the humans around it can. This feeds the myth that the animal knew the earthquake was coming. But animals also change their behavior for many reasons, and given that an earthquake can shake millions of people, it is likely that a few of their pets will, by chance, be acting strangely before an earthquake.\n\nAlthough scientists disagree as to whether animal behavior can be used to predict earthquakes and natural disasters, they all agree that it is possible for animals to sense changes in the environment before humans. Researchers around the world are continuing to study animal behavior and earthquakes. It is hoped that these studies will help to aid earthquake predictions.
1025680
Owls have excellent hearing, and their feathers make no sound as their wings flap, so the can catch their prey. \n\nRabbits can resorb their babies in the womb if conditions warrant.\n\nMilkweeds have poisonous sticky sap (the milk) making it hard for most insects to feed on them.
771301
Tough question! Best I can do:\n\n"Scorpions are rather slow in their movements, although they are capable of short bursts of speed."
311298
They don't have ears in the sense you are familiar. You probaby think of ears needing some sort of distinguishable outer ear sturcture (humans, dogs, cats, mice, etc.). Snakes have ears, but they don't have an outer ear structure. Thier ears are very similar to that of fish. They have an area on the proximal latteral end of their heads where you can find structures known as tempanic membranes. These are the equivalent of your ear drums, but they are found on the surface of their heads. These sturctures are able to relay vibrations much like we do with our ear drums.\n\nHowever, it's also important to note that snakes are able to sense vibrations with other parts of their body. They are very sensitive to vibrations using the nerve endings in their body. The tempanic membranes help sense vibrations above ground. They basically use their bodies to sense vibrations through the ground. So they can "hear" you walking up on them, even if they don't see you, by feeling the vibrations you create when you feet touch the ground.
51224
When wild horses grow too much hoof, they head for rocky ground to chafe it away.\n\nThink about it.
394645
They are constantly searching for a meal, I'm just guessing, buy I would say they are sniffing out their next meal. Do I want a worm or some of this corn mash over here. I would say when they are running they are not worried about food just getting away from what is after them, Especially the hens, How would you like to get pecked on the head by a rooster if you know what I mean. Good question though..
74
There make very low frequency sounds that we cannot hear. They also make sounds that we do hear and it is because they what other animals to hear it.