Ulva Island rain forest in New Zealand.
It’s clear that cutting down rain forests to plant crops, however fulfilling in the short-term for a farmer, is a disaster for the millions of species living there. But it could also, in the long term, be a disaster for the farmer. A recent study in Nature combines rainfall data, satellite images showing tree cover, and atmospheric modeling to show that air that has passed over tropical forests often carries at least twice as much water as air that’s passed over less leafy land. That means that large-scale cutting of rain forests can result in catastrophic drought for hundreds of miles around.
Above, the real deal; below, the clay models used to test predators’ reactions to local and foreign frog markings.
Sometimes, you have to make a thousand frogs from modelling clay to make your point.
A single species of poison dart frog sports ten completely different coloration patterns, depending on where they live. Are these color divisions being encouraged by the birds that prey on them?, wondered evolutionary biologist Mathieu Chouteau from the University of Montreal. To find out, he set out 1800 clay frogs, made by himself and his (saintly!) girlfriend, in the Peruvian forest.