the Jacobson's organ
The Jacobson's organ is one that helps snakes smell and sense their prey. It compares and contrasts odors in the snake's habitat and allows the snake to modify its behavior as necessary.
Snakes use their forked tongues to collect scent particles from the air and transfer them to the vomeronasal organ in the roof of their mouth. This organ helps them detect and "smell" their surroundings by analyzing chemical cues.
When a snake flicks its toungue it is gathering scents from the air, which are then sent to the Jacobson's organ at the roof of the snake's mouth. This gives it a very accurate sense of smell.
its their sense of smell but it depends on what snake your talking about
They are known for two senses. The sense of intuition and a sense of dread
A snake uses its forked tongue to collect scents and then flicks them into the Jacobson's organ on the roof of the mouth.
Jacobson's organ
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.
A snake has a forked tongue because it evolved as a 'direction finding' sense over thousands of years. As a snake flicks its tongue, microscopic particles of scent stick to it. The tongue is pulled back into the mouth, and placed into the Jacobson's Organ - an area of very sensitive nerve cells. So sensitive that it can detect the microscopic variations from one half of the forked tongue to the other - telling the snake to 'go this way' to food !
The snake flicks it's tongue to capture smell molecules carried on the air. The tongue then brushes against the Jacobson's organ inside the roof of the mouth, to annalyse the smell for possible prey or danger.
you make sure it can't smell you; they have a very acute sense of smell...be very quiet & wear rubber shoes..
Snakes don't have a very good sense of smell through their noses, the tongue has a sensor in it that the snake can "sense" danger, food, water and more things they need to survive. Without the tongue the snake wouldn't last too long