Long-term monitoring is key to determining if the reintroduction of captive-bred red-billed curassows is to be a success.
Continue reading Attempts to reintroduce an endangered bird species to the Atlantic rainforest of Brazil
Scientists puzzle over the possible circumstances that might lead a male fish to shift sex and become female. Continue reading The mystery of the fish that change their sex
Male long-tailed macaques spend much of their time safeguarding females during the mating season, yet are still able to maintain their energy levels, despite this extra duty. Continue reading No loss of vigour for protective male macaques