Dogs have a good sense of smell and acute hearing.
They need to locate their prey so the use their vocal box and find their prey. They also need to stay in touch with others for danger.
They know when there predator is there. They can sense where anybody tries to harm.
No. Platypuses feed only on live prey. Because their bills detect fine electrical impulses from underwater crustaceans and invertebrates, platypuses cannot locate the prey unless it is live.
Pot vipers have a pit on either side of the head that can detect the heat from a nearby animal. They use this to help them locate prey and potential predators.
Bats use Echolocation to find prey. They send out high frequency sound waves and wait for the bounce-back. When some of that wave gets reflected or echoed quicker than the others back to them, they can use that too locate prey or obstacles.
By echolocation
They have a sonar and they use it to catch prey
A dog can smell a single grain of salt dissolved in a bathtub of water. They track people by the smell of their footprints. A bloodhound can smell things about 1,000,000 times better than a human.
They locate their prey either by scent or heat.
prey
Like any animal that is prey, they are ALWAYS shy. They rely on their colors to blend with their surroundings, good hearing and vision to detect danger, and speed to run from it.
The piranha is known for its keen sense of smell, which helps them to locate prey. Blood in the water will send piranhas into a frenzy. They are also able to sense any unusual vibrations in the water around them and any commotion in the water will attract a shoal of piranhas.