Costa said these long-range swimming ___ make it easier for elephant seals to deal with regional food shortages ___to natural climate patterns like El Nino. But he worries that the seals won’t be able to swim away from ____ changes linked to warming oceans.
For example, what if the fish and ___the seals like to eat move further down into the water?
If food goes ____ , they’re going to have to hold their breath longer. They’re going to have to swim harder. So in many ___, you could argue that these deep-diving animals are the ones that would be more___ to environmental change.