With there tongue! They flick their tongue in and out of their mouth to sence the air when the tongue is out it picks up scents and when it is flicked back into the mouth it rubs against the jacobsons organ which converts the sences and allows the snake to understand its surroundings
Yes Coral snakes can sense danger. Many others too. Not all snakes can sense danger. A water snake example, can not sense danger if an animal or human is looking to kill it or hunt it down. Tree snakes also, can not sense danger of near predators ; even pray, which is not danger to the snake, it is food. Snakes have amazing ways! Snakes are beloved animals even some,that are not poisonous, can be pets. Snakes are amazing!
they can sense it
Snakes don't have actual ears; they have holes in their skull that they sense vibrations.
sense of smell
through there tongue
All snakes can't hear but they have a good sense with their tongue.
The Nose.
YES......thats like saying do all snakes have no bones..... not trying to be rude. -SP
Certain types of geese are known to deter snakes. One species, the cotton goose, is known to deter snakes and to even kill them.
snakes does not have ears. so they hear by the vibration from the air
Depends on what you mean. If you mean are snakes camouflaged - the huge majority are - they are almost exclusively ambush predators so camouflage is almost essential.
Snakes breath through nostrils like you and me, but if you mean how do they smell, then the snake's sense of smell is in it's tongue, which is why snakes flick their tongues a lot.