Otter fans, just how DO they do it? Here's video from SFWildlife. com showing exactly that! North American River Otters have delayed implantation....after the female's egg is fertilized, it does not implant (attach to the uterine wall) for up to 10 months. Once it does, she gives birth a couple of months later. Think of this: otter mothers usually go into estrus (heat) about 2 weeks after giving birth. So nursing mothers are not only caring for needy newborns, but accomplishing energetic mating.

Sounds that Sea Otters Make and What They Mean

Otters Lutra Lutra mating having sex in nature

Two otters are making a nest because they have entered mating period | Jill Mattocks Page

Sea Otters | Big Pacific