I present to you a few unusual senses that are present in representatives of the world fauna.
At first, the description of the platypus - a mammal with a duck's beak, which incubates the eggs, was seen as a joke. Well, what is the ridiculous duck bill? Platypus feeds on small invertebrates that live on the bottom of rivers and lakes. When he dives into his eyes, nostrils and ears are completely closed - no water enters. Beak platypus is literally packed with sensitive sensors can capture even the weakest electric fields arising from the movement of living organisms. Along with the capture of electric fields, beak platypus is also very sensitive to disturbances occurring in the water column. Two of these feelings - and Electroreception mechanoreception allow platypus locate its prey with amazing accuracy.
Bats are traditionally considered blind compared with conventional animals. If the eyes of a bat is much smaller than other predators, and is not nearly as keen, it is only because these mammals have developed the ability to hunt with the help of sound. Echolocation of bats is the ability to use high-frequency sound pulses and the ability to capture the reflected signal to which they estimate the distance and direction to the surrounding objects. At the same time, calculating the speed of insects, they evaluate their prey not only on the time spent on the pulse passes back and forth, but also take into account the Doppler effect. Being nocturnal and hunt mostly on small insects, bats need the ability to not depend on the light. People have little rudimentary form of this feeling (we can understand which side came the sound), but some individuals develop this ability in real echolocation.
When the police pursuing criminals at night, or rescuers are looking for people under the rubble, they often resort to devices with an infrared image. A significant portion of the thermal radiation of objects displayed at room temperature in the infrared spectrum that may be used to estimate the surrounding facilities on the basis of their temperature. Some species of snakes that prey on warm-blooded animals have special grooves on the head, allows you to capture infrared radiation. Even after blinding the snake can continue to hunt correctly, using their infrared vision. It is noteworthy that at the molecular level of infrared vision snake completely unrelated to the normal vision of the visible spectrum, and should be developed separately.