BOTTLE NOSE DOLPHIN SWIMMING FAST AND PLAY WITH SPONGE© Yann hubert/Shutterstock.com In Shark Bay, Western Australia, some Indo-Pacific bottlenose dolphins use sponges as tools while they hunt.

A quick splash, a sleek fin cutting through the surface, and then—gone. Dolphins don’t perform on cue, but when you spot one, even for a moment, it truly does make the ocean feel alive. Some places ...