Subtropical belts

Hot Deserts

Where water is currency. Every animal here is a water-budgeting machine.

Species

8,500

Plant species

2,400

Endangered

12%

Pressure

Deserts expanding ~12 million ha yearly

Surprise of the day

Camels don't store water in their humps. The hump is fat. They store water in their bloodstream — and can lose 25% of body weight without dying.

Who eats who

Apex predators on top. Energy flows down.

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