What’s (not just) brown and sticky? Adaptive radiation in Stick and Leaf Insects in the order Phasmatodea.

The order Phasmatodea contains more than 3,000 extant species of insect found throughout the world, especially the warmer zones. These herbivorous (mostly arboreal) insects are most well-known for their crypsis, or camouflage, where their colour, shape and behaviour enable them to masquerade as twigs or leaves (hence their common names of stick and leaf insects).… Read More What’s (not just) brown and sticky? Adaptive radiation in Stick and Leaf Insects in the order Phasmatodea.

Mosquito extinction. Is it really a good thing?

A few years ago I read an op-ed piece in the journal Nature that celebrated the potential demise of mosquitoes as scientists prepared to release genetically modified mosquitoes in Brazil in an attempt to eradicate populations carrying malaria. What most struck me about the piece was that the author concluded that mosquitoes performed no ecological function and that the… Read More Mosquito extinction. Is it really a good thing?

Hawk moths and evolutionary predictions

Commonly known as Hawk Moths, Sphinx Moths and Hornworms, these moths are important pollinators of orchids and other flowers. Nectar tubes and hawk moth tongue lengths are often associated; Xanthopan morganii praedicta (centre) was famously predicted to exist by Charles Darwin and Alfred Russel Wallace based on the length of the nectar spur of the Madagascan Christmas star orchid… Read More Hawk moths and evolutionary predictions