How did our stable body temperatures evolve?
Our warm bodies come at such a huge metabolic cost that experts cannot agree on why this ability has evolved at all. How do we and other animals come to stay warm, whilst keeping our cool?
Do plants need sunlight?
Heated eyes give swordfish deep-sea ‘night vision’
Some 300m below the ocean surface it is always twilight, and cold… The water is barely above zero. Fast-moving squid…
Do florists stock fungi?
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