Here's a breakdown of different ways to answer:
By Number of Species:
* Oceans: While oceans cover most of the Earth's surface, the vast majority of animal species live on land.
* Tropical Rainforests: Rainforests are known for their incredible biodiversity, housing a huge variety of species.
By Biomass (Total Weight of Living Organisms):
* Oceans: Oceans hold the largest amount of animal biomass, thanks to the massive populations of fish, plankton, and other marine life.
By Geographic Distribution:
* Everywhere: Animals live on every continent, in every climate, and in every habitat on Earth. Some animals have a wide range (like humans), while others are restricted to specific areas (like the Galapagos tortoise).
So, to answer your question accurately, it depends on what you're looking for:
* Most species: Tropical rainforests
* Most biomass: Oceans
* Most diverse range: Everywhere!
Let me know if you'd like to focus on a specific type of animal or habitat!