Science Common Sense

403 - What role do whales play in marine ecosystems?

Whales play a big role in keeping our oceans healthy. Here's how:

1. Food source: Whales are a food source for other animals like sharks, killer whales, and even tiny insects that eat their dead bodies.

2. Ocean fertilizers: When whales poop, they add nutrients to the water, which helps tiny plants called phytoplankton grow. These plants produce oxygen and support the whole food chain.

3. Ecosystem engineers: Whales help dig up the ocean floor when they eat or swim, which can create pathways for other animals to live and hunt.

4. Keeping oceans balanced: By eating certain types of fish and krill, whales help keep their populations under control, which keeps the ocean ecosystem balanced.

Whales are like a key part of a big puzzle, and they help keep our oceans healthy and full of life.