Posts tagged north american river otter
Creature Feature: North American River Otter

Unlike sea otters, river otters burrow into hillsides near the water to make cozy dens where they sleep and where females have their litters of pups. Females give birth to 1-4 pups after 63 days of embryo development. But that could be more than a year after mating! Otters have the unusual ability to delay embryo implantation in the womb for 8-10 months, perhaps to wait for the easiest pup-rearing conditions.

Read More