The average whale shark measures about 30 feet long, with a mouth stretching nearly 5-feet across. The largest whale sharks ...

Before I even had a chance to get my wetsuit on, a whale shark swam right up next to the boat, its mouth wide open. The tip of its upper lip could be seen just above the water.

Whale sharks are also endangered, ... and watched as “the male was observed to open its mouth and lunge forward towards the caudal fin of the female,” according to the study.

Whale sharks are also endangered, ... and watched as “the male was observed to open its mouth and lunge forward towards the caudal fin of the female,” according to the study.

A company in Shenyang announced in August that it had produced the world's first intelligent robotic whale shark that could swim, float, dive, open and close its mouth. The bionic shark was nearly ...