Walruses prefer shallow shelf regions to forage on the sea floor, and they really seek out physical touch with one another, so you're likely to find them clustered together.

They forage for food in the day,

Sea Otters don't do that very well and it took a lot of trial and error to kind of figure that out and for the most part if you don't have an ability to really provide that maternal care for the pups that are that are rescued it's very difficult to reintegrate them back successfully into the wild and the Monterey Bay team since the mid 80s has been trying this in various forms and they they've gone you know where they had animal care staff that were you know pretty much just totally invested in trying to do everything possible to play the part of a sea otter mom and and teach these pups everything they would need to know to be able to forage and how to find food and how to break it open and and and they you know tried a number of times to rehabilitate animals like that and release them back into the into the wild and had very little success doing that and so for a long time if there was a stranded sea otter pup it was pretty much deemed non-releasable by the US Fish and Wildlife Service pretty quickly and then if you know and then provided a home was available at a at an accredited institution of an aquarium or zoo that animal would be moved into that that sort of public display type realm but what the folks at Monterey Bay Aquarium started doing was taking some of their older females in their in their exhibit their exhibit population and essentially using them as surrogate moms for these stranded pups where they would provide one of their older females with a with a newly stranded pup to see if the female would take it under her wing for lack of better word and and start raising the pup and that became a very successful program to this day it's very successful and it's starting to branch out into into some other partner facilities that that we hope hopefully we'll be working with in the future on that as well and so but the limiting factor is the number of females that can serve as surrogates because it's a very there's only a handful of them it takes a long time and there have been years where there's more pups stranding or being either abandoned or in the case of some of the animals that we brought here to Georgia Aquarium their mothers were preyed upon by white sharks and and therefore abandoned and so if there's not enough surrogates in the in the program then those animals are deemed non-releasable and an effort is made to try and place them into into aquariums and zoos.

Let's join CNN's Richard Quest who's on a quest to forage for truffles in Puglia, a region known as the Bread Basket of Italy.

Before you were born, we used to forage.

We're finding these flecks of plastic in everything from the forage fish

It had been well documented that the presence of sea otters has positive impacts on kelp forests, since the otters forage on urchins, which like to eat kelp.

and climate permit, while otherwise preferring to forage (since it’s less work, after all).

And there's a, you know, this prominent theory that, you know, one of the main reasons we eat is to forage for amino, amino acids that we'll eat until we get enough of the essential amino acids.

Herring are one of the seals' favorite foods, and this forage fish has a distinctive way of communicating with their schoolmates, making high-frequency sounds by blowing bubbles out their backsides.