Seven new defence behaviours have been reported for the False Coral Snake Oxyrhopus rhombifer, one of which is the first registered for all Brazilian snakes. Cloacal discharge, body flattening, and false strikes are just a few examples of the variety of defence behaviours demonstrated by this species.
The average wing size of two Nightingale populations in central Spain has fallen over the last twenty years. Nightingales migrate over vast distances from Sub-saharan Africa to Europe, where they breed. But, after their first journey to Africa, those with a shorter wing length are less likely to return to their breeding grounds. Climate change is the accused culprit; the timing of spring has changed and droughts are lasting longer in central Spain. Scientists believe this is having a knock-on effect on a series of adaptive traits that enable Nightingales to migrate effectively.
Two new studies have shed light on the best way to achieve long-term success after giraffes are translocated for conservation. A founding population of at least 30 females and 3 males is amongst the recommendations given by scientists to achieve long-term population viability post translocation.
The longevity of the largest fish in the world, the Whale Shark Rhincodon typus, has up until now proven difficult to determine. But past atomic bomb testing has given rise to an identifiable ‘time marker’ that can allow scientists to estimate the age of specimens.