3 ms·
Maybe the limit is not function, but being competitive. Insects don’t have lungs and an open instead of closed circulatory system, with a tubular “heart” sloshi
by ralfd 6y ago
Maybe the limit is not function, but being competitive. Insects don’t have lungs and an open instead of closed circulatory system, with a tubular “heart” sloshing around hemolymph instead of blood. At this small size this should have advantages?
- pitspotter 6y agoYes, and I was thinking about its eyes. The human eyeball has diameter roughly equal to the entire length of this lizard, making its volume 10,000X larger than the lizard's eyeball. OTOH, with a pupil that small, visual depth of field must be large. So perhaps the nano-chameleon doesn't need to do much in the way of focussing. Small wonder they took so long to discover :-p
- pdpi 6y ago> OTOH, with a pupil that small, visual depth of field must be large. But the pupil is also small enough that diffraction is a major issue so their visual acuity is probably quite poor
- pitspotter 6y agoGood point. So it can also 'get away with' having tiny retinas, since there's less information available to resolve.