Sperm whales, also known as cachalots, are a species of whale. They are the largest toothed predator in the world.
The characters who belong to this species are:
- Pearl Krabs
- Dream Pearl
- Princess Pearl
- Live-action whale
- Whale cellmate
- Goth whale
- Patrick's whale friend
- Arctic sperm whale
In SpongeBob SquarePants, sperm whales are much smaller than their real-world counterparts. So that Pearl could fit in the frame of each episode, Stephen Hillenburg decided to make her only about twice the height of SpongeBob.
Like actual sperm whales, which have the biggest brain of any animal on the planet, Pearl has the biggest brain in Bikini Bottom. However, she is still young and immature. One big difference between Pearl and actual sperm whales is her diet. In reality, sperm whales are an apex predator. Stephen Hillenburg wanted to subvert this and have Pearl be a vegetarian. She only eats salad and does not eat the other characters.
For the first eight seasons, Pearl was the only sperm whale who ever appeared in Bikini Bottom. In season 9, sperm whales started to appear as bit characters, like the whale cellmate and the goth whale.
- Sperm whale on Wikipedia