Seabirds act as both predators and as prey. In the marine environment, seabird foraging patterns can reflect ocean conditions. On land, their breeding success reflects constraints placed on seabirds by central-place foraging, ...

Photomorphogenesis has two stages. First, seedlings detect light and open their embryonic leaves (cotyledons). Second, seedlings optimize their light environment by regulated elongation of the embryonic stem (hypocotyl). ...