Marine animals live longer at high latitudes

EarthzineEcosystems

After months of work by researchers, two patterns have emerged. The first reveals that, as a bivalve’s lifespan increases, its growth rate decreases. The second shows that long life and slow growth are common among animals near the North and South poles, whereas tropical bivalves, close to the equator, are fast-growing and short-lived.

Bird communication: Chirping with syntax

EarthzineEcosystems

People communicate meaning by combining words according to syntactic rules. But this ability is not limited solely to humans: A group of evolutionary biologists have discovered that Japanese great tits, like humans, have also evolved syntax. By combining their various calls using specific rules, these songbirds can communicate specific messages and engage in complex interactions.

ASU researchers find microbial heat islands in the desert

EarthzineEcosystems

Expanding desert in China’s Gansu province. Photograph: Peter Parks/AFP

Deserts are often thought of as barren places that are left exposed to the extremes of heat and cold and where not much is afoot. But that view is being altered as new research reveals the intricate ecological dynamics of deserts as they change in response to the elements.

Famous baby giant armadillo found dead

EarthzineEcosystems

After two years of recording the surprising relationship between a baby giant armadillo and its mother, scientists have found the juvenile dead in the Brazilian Pantanal.