Ed YongMarcus Drymon wasn’t expecting a baby tiger shark to barf up a ball of feathers onto his boat.
And he really wasn't expecting to discover that the feathers belonged to a brown thrasher--a land-based songbird.
Ed YongAnimal migrations are so often portrayed as epic journeys that it's easy to forget how hard they are--and how often individuals don't make it.
Which is also how forest songbirds repeatedly end up in the stomachs of oceanic sharks.
By analysing data from more than 4,500 9- to 10-year-olds, Dick et al. found no evidence that bilingual children have an advantage in executive functions, the cognitive abilities that are central to the voluntary control of thoughts and behaviours.