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Pretty in pink

Most plants have both female and male parts – they are hermaphrodites. But one of our commonest spring wildflowers, red campion, exists as separate sexes. Peer into the pale flower centres and you should see either club-like male stamens or curly female stigmas. Usually males, which produce the pollen, outnumber females, which ensures there is […]

Crackle and pop

Short-beaked echidnas avoid over-heating by blowing – and bursting – bubbles on their nose