Overcrowding and/or insufficient food quality Aphids also develop wings, as cold weather and short days advance, for mating.
In conditions where oxygen is in short supply the East African naked mole rat can switch from metabolising the usual source of energy to metabolising what other source?
In North America one species of what, called Magicicada septendecim, lives for 17 years all but a few weeks of which are spent underground?
Once widely bred in south-east Asia for blood sport but now often kept instead domestically or as pets, what escaped in large numbers into the wild in Australia and was identified as a possible severe threat to natives?
