they both like the water.
Otters are aquatic mammals known for their streamlined bodies and webbed feet, while water rats, or water voles, are rodents that live near waterways. Otters are carnivorous predators, while water rats are herbivores. Otters are known for their playful behavior, while water rats are more elusive.
Water repellant fur,live near and spend much of their time in water.
theyare both rodnts
well they both love company
Water birds, rats, ants, snakes, frogs, otters, other crabs, fishes, sharks, octopuses, human... water pollution, destruction of habitats...
Manatees and river rats and possibly otters.
the similarities between cat rat and bat are that they are from the kingdom animelia and phylum mamalia.
In rivers i have seen around the world you could find fish of all kinds, crocodiles, hippos, otters, water rats, beavers, eels, snakes and toads.
no rats have gills, incuding water rats
they have the same blood organs and the some DNA cells.
River rats, also known as river otters, are semi-aquatic mammals with long, slender bodies, webbed feet, and thick fur. They have a sleek appearance with pointed faces, small ears, and long tails. River rats are excellent swimmers and are often seen playing and foraging in or near water bodies.
What studies have found is that there are strands of DNA that we share, 13 strands, with rats. What that acutally means, isn't quite as well known.