For some animals, their stink helps keep them alive. Smell is the most developed sense in a dog. The animal mostly eats leaves, ... purple ink that’s a mix of ink and opaline; a 2010 study showed that the substance makes food less palatable to predators. On this note, a bear’s sense of smell is 2,100 better than that of a human. Binturongs may smell like popcorn, but it’s not on their usual menu. It has big and strong claws to dig a pile of dirt to looking for their favorite prey. 8 Highly Dangerous House Smells That Should Not Be Ignored ... own jokes and likes to pour too much hot sauce on her food. This animal is also known as the smelliest animals. A bear can detect an animal’s carcass that is about 20 miles away, and polar bears can follow a sexually receptive sow’s scent over 100 miles. The next smelliest animal is Pangolin. Animals can also release smells to send a message to other animals. Animals That Use Smells 5 Animals With Stinky Defenses. Pangolin’s tongue is considered as the longest tongue in the animal kingdom. The main diet of pangolin consisting of ants and termites. Some animals smell foul for a number of reasons. What causes those “distinktive” smells that we associate with dogs and cats? There are simpler ways to scare off a predator with foul smells, too. They have been known to eat carrion, small invertebrates, eggs, leaves, and plant shoots, too. The pet deodorizing business is really booming. Odor is one of the major characteristics of animals - they use it either to attract mates for courtship, repel predators or to defend their territories. Hold your nose and meet the hoatzin, a bird with a number of distinctions, not the least of which is that it smells like fresh cow manure. They are classified as carnivores but eat most anything that suits their fancy: mainly fruits, but also vegetables, birds, small mammals, and fish. Bears use this keen sense of smell to find food and mates, avoid danger, and also keep track of cubs in the wild. Many natural foods markets carry products that can be added to an animal’s food, applied topically, or sprayed in the air to reduce or eliminate offensive odors. In some cases it's a self-defense mechanism; if they feel threatened they will release a noxious spray which will deter any predator. A dog’s great sense of smell also allows them to determine exactly where these smells are located. A scent can be used to help find food, communicate, mark an animal's territory, find a mate, and keep away another animals. In the entire animal kingdom, the duck-billed platypus, along with echidnas (ant-eaters), is the only mammal that can lay eggs.