I was never very good at maths! At school I was put into a form who were taught New Maths. Luckily for me, we had a really great teacher who was able to reveal the mysteries of the subject in a way that made sense and I managed to get an ‘O’ level!. The New…
Thanatosis, or apparent death, is when an animal pretends to be dead! Lizards do it, opossums do it (‘playing possum’) and butterflies do it! The idea is to fool the pursuer into thinking you are dead, and hope that they will then leave you alone! Female butterflies sometimes do it to avoid the unwanted attentions…
Iridescence is when surfaces – such as the wings of butterflies – appear to change brightness and colour as the angle of view, or the angle of illumination, changes. The iridescent wings of Morpho butterflies are some of the best examples. The spectral reflectance changes with the angle of incidence – i.e. the viewing angle…
The first time I saw a fly with a droplet of water protruding from it’s mouth (or the tip of the proboscis) I was quite surprised. Why would a fly be blowing bubbles like this? It turns out that flies do this to cool down! They move a droplet of fluid in and out and…
Ray Cannon's nature notes 