Leech quest

Mark Siddall, the leech hunter, is on another quest. He's posting updated from his journeys through Australia in search of new leeches. Read them at Blood Lust II.

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tags: evolutionary biology, evolutionary biogeography,
I know what you're thinking. You're thinking, I need more stories about leeches. I want to find out what scientists are learning about how leeches evolved.
This is a nice, pretty leech: