The olms are amphibians that live underwater in caves found in Italy and on the Balkans. They are relatives to the salamanders, however they live under water their entire lives. Since the food resources in this environment are slim, these creepy creatures can go up to ten years without eating.
The huge white sharks can go on for several weeks without eating. It is strange, but the longer they go without a full meal, the more acute their hunting skills become.
Bears do not hibernate over the winter – that is a lie. The bears do sleep more during the winter and cut their metabolism in half. In fact, they can go about 100 days without food and water.
Penguins live in a brutal environment on earth. The females go out into the subzero temperatures to hunt, yet the males sit in the nest to keep it warm. During the hunting period of the females, the males live off of their layer of fat.
On the camel's back there are humps which are storing fat. That gives them energy when trekking through the desert. The trips can last around 40 days.
Frogs live in wet environments and their bodies are built to compensate. During times of draught, some species can hibernate for up to 16 months. Others living in colder areas enter a dormant state in order to conserve much more energy.
The snakes are cold-blooded reptiles that can't regulate their body temperature in chilly weather. That is why their metabolism slows down 70% and they can survive for an entire year without food.
The crocodiles keep their energy by being motionless. They can survive for a few months without food. In extreme cases, the period without food can go up to three years.
Spiders sneakily wait for their food to come to them, but this is not always fast. The bodies of the spiders are made to last up to a few months without food. The rabbit hutch spiders can go further for about a year.
The Galápagos tortoises can live to be over a century old. The reptiles can go without food or water for up to one year.
Found in Australia, Africa, and South America, the mudskippers, aka lungfish, can hibernate for as long as four years in case they are in extremely harsh conditions.