Dumb Stupid Birds
The ruff comes in three permanent kinds of male: one fights, one freeloads, and one disguises itself as a female to slip past both. Which one a ruff becomes is fixed before hatching, locked in a chunk of chromosome that flipped backwards around four million years ago. Inherit two copies and the embryo dies. It has balanced fighters, freeloaders and impostors at fixed odds since before our own kind existed.
55 Folgen
Kommentare
0Sei die erste Person, die kommentiert
Melde dich jetzt an und werde Teil der Dumb Stupid Birds-Community!