ZAP’S FACTS!
WHALES

A blue whale's heart is the size of a small car.

The blue whale's heart is so big a small child could crawl through its arteries.

1 min read
A cheerful child crawls through a giant cartoon heart, with a friendly blue whale smiling behind them.
THE FULL STORY

A blue whale’s heart weighs around 180 kilograms - about the size of a small car - and its main blood vessels are wide enough for a child to crawl through.

A playful blue whale swims above a sleeping whale with a closed eye, surrounded by cheerful bubbles in a bright ocean.
DID YOU KNOW? Whales sleep with half their brain awake at a time. One half rests while the other keeps swimming, breathing, and watching. 2 min read
A playful group of four killer whales leaps joyfully through bright blue waves, showcasing their sleek black and white…
DID YOU KNOW? Killer whales are the biggest members of the dolphin family. They hunt in family groups, teach their kids, and each pod has its own dialect. 2 min read
A cartoon whale rests on the seafloor, surrounded by colorful coral, a curious octopus, fish, and a crab exploring its body.
DID YOU KNOW? A dead whale on the seafloor feeds a whole ecosystem for decades. It's called a "whale fall" - and life crowds around it for 50+ years. 2 min read