Zoology

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Conflict Between Sexes Could Replace Evolution of New Species

New research shows that males and females of the same species can evolve to be so different that they prevent other species from evolving or colonising habitats, challenging long-held theories on the way natural selection drives the evolution of biodiversity. According to Darwin’s theory of natural selection, first introduced...

Tiny poisonous Brazilian frogs are ‘deaf’ to their own call

Tiny Brazilian frogs still ‘sing’ despite not being able to hear themselves – this is the surprising discovery of new scientific research. The new study, published in the journal Scientific Reports from the publishers of Nature, reveals that two species of pumpkin toadlets found on the leaf litter of Brazil’s...