Q:I thought I had bought Brussels sprout plants, but it looks as if they may be cauliflower! Anyway, I do hope that you can identify these eggs on the underside of the leaves. I put some in a jar with ...

For the survival of animals, successful foraging is equally important as predator avoidance. Therefore, in the relationship between predator and prey, both behaviors directly compete with each other.

If a novel, resistant host-plant genotype arises in the environment, insect populations utilising that host must be able to overcome that resistance in order that they can maintain their ability to ...