The incredible scene—captured by filmmaker and host of National Geographic’s Animals Up Close, Bertie Gregory—offers a window into the emotional lives of whales.

Why do humpback whales protect other animals? Humpback whales try to save seal. Watch video of humpback whales trying to save seal from killer whales. Humpback whales vs. orcas.

A young grey seal pup rescued earlier this year has been successfully released back into the wild, marking a milestone for the National Aquarium's Animal rescue team.