'As it's nocturnal, a bat has only these cells in its eyes, no cones'
Rods
BATS: As its nocturnal, a bat has only these cells in its eyes, no cones
As it's nocturnal, a bat has only these cells in its eyes, no cones
As it's nocturnal, a bat has only these cells in its eyes, no cones
BATS
Rods
BATS