Melanins are biological pigments that occur in two chemical forms, eumelanin and pheomelanin. Here authors report for the first time that an insect (grasshopper) synthesizes pheomelanin.

The introduction of invasive species, which often differ functionally from the components of the recipient community, generates ecological impacts that propagate along the food web. This review...

This study shows that halogenated flame retardants, both banned PBDEs and their substitutes, are able to cross the blood–brain barrier of cetaceans and penetrating the brain. The study also...

Anciently introduced species can be confounded with native species because introduction pre-dates the first species inventories or because of the loss of the collective memory of the introductions....

Petrels are highly philopatric and return from migratory journeys of thousands of kilometres to breed in the same burrow year after year. During the breeding season, some burrowing petrel species...