This river otter decided to hop in the vehicle, then proceeds to call shotgun and make itself at home. Try as you might to be frustrated or mad, you will fail, as these folks did. Otter cuteness wins every time.

The hairy-nosed otter (Lutra sumatrana) is one of the rarest otter species on earth. Until 1998, it was thought to have been extinct, but small populations have been discovered since then.

The hairy-nosed otter is the least known of the Asian otters, and is also the most difficult to identify in the field. The hairy-nosed otter gets its name from the hairs on the end of its rhinarium (moist part of its nose); in most other respects it is similar to European otter, Lutra lutra.

Hairy-nosed otters are entirely brown, except for lips, chin and upper throat, which are whitish. Their fur is rather rough but short. Their tails are flattened and oval in cross section, and their feet are fully webbed between the digits, with prominent claws. The penis of the adult male is not visible externally.

The contact call between otters is a single-syllabic chirp; adult females call to pups with a staccato chatter. Large otters are very similar and can be positively distinguished only by close inspection of the nose and fur, or the skull. In this species, the skull is flatter than that of smooth otter, Lutrogale perspicillataI and has smaller teeth (Source)