Dave is correct in saying they have a very distict smell and it is not unpleasent at all. Their poop (called spraint) has a somewhat pleasant smell … Also contains what appear to be mammal bone fragments and none of the fish scales and bones that I normally see in otter spraint. Runways are the most common characteristic of an otter home, connecting small or large bodies of water together. Why collect it? That is otter spraint. The spraints are often made of food waste; however, otters have anal glands that secrete the ‘otter-like’ smell. Eyesight. For people fascinated by animal behavior, otters have long been a source of curiosity. Some scientists believe that an otter's sense of hearing is more important than smell for sensing danger. I have a collection of spraints and they are all different you really have to go by smell in some cases. It was quite small (about 7cm x 1 cm) and seems twisted at the end. Spraint comes in all shapes and sizes depending on the type of prey they have been eating and age and sex of the otter. I did try giving it a sniff, but couldn't really smell anything, but then I've got a bit of a cold at the moment, so that doesn't mean much. To most people otter spraint has a pleasant musty smell whereas the smell of mink and fox faeces are unpleasant. Green and Monick, Journal of Ethology, found that otters actually spend more time, standing, sniffing, and rubbing at spraint sites than just pooing. Each otter has its own unique spraint scent, almost like a fingerprint. Otters are great moms! North American river otters tend to have spraint sites at vantage points, such as under bridges, on prominent rocks at … At a very basic level, if we find spraint we know that otters … Every otter can eat 15% of their weight on a daily basis because they have an extra-fast metabolism. Otters have the densest fur of any animal—as many as a million hairs per square inch in places. It’s so aromatic, it has its own name: spraint. The smell will stay with the sparint for some time. Isn’t that a great word? Female otters love to adopt pups. Otter's don't just make spraints, they also make "anal jelly." Turkey Vultures find their food by smell, so either this otter had some nasty fish smell from a previous meal or some very ripe sprint nearby would be my guess. They can vary in size a great deal and do not always contain fish bones. The scent of an otter’s spraint determines the animal’s age, sex, and reproductive period. Spraint areas are used as bathrooms. A specialized lens and cornea correct for the refraction of light caused by the transition from aerial to aquatic vision. Otters tolerate one another, forming group hierarchies based on the most desirable living areas. Otters emit an odor, and smear their spraint (a fancy word for otter dung) at latrine sites, using their hind feet and tails, in order to mark their territory. Plus otters each fish, which they are going to smell a bit like. Spraint composition is unique to each otter, and the creatures can identify each other by the smells. Not only do otters spread fecal-facts but they also rub at the sites, leaving behind scent and smell as well. 3. All otters have very good hearing. Otters also have particularly stinky poop, which even has its own name: spraints. The larger the group, the larger the smear. The smell of an otter’s spraint has been likened variously to that of freshly mown hay to putrefied fish. Eyesight is probably the most important sense for hunting. Each otter’s spraint has a slightly different smell, which enables them to communicate easily. Correct for the refraction of light caused by the transition from aerial to aquatic vision anal.... 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