Most flies avoid water as it means drowning or predators, but alkali flies, flies living around the high pH hypersaline predator-free Mono Lake in California, have evolved hairy, waxy bodies and dive underwater on purpose, to lay eggs and eat algae.

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Most flies avoid water as it means drowning or predators, but alkali flies, flies living around the high pH hypersaline predator-free Mono Lake in California, have evolved hairy, waxy bodies and dive underwater on purpose, to lay eggs and eat algae.