The ads for "The Sterile Cuckoo" remind us that you can fall in love for the first time only once in your life. True enough, but that begs the question of whether Pookie and Jerry are really in love.

It seems even more elusive than the Yellow-billed Cuckoo, and is generally seen less often during migration, although the Black-billed is the more common nesting bird toward the north.

Dave Wolfenden sings the praises of the Redheaded fairy wrasse — a resourceful fish that can disguise its smell to confuse predators. For many reef enthusiasts, fairy wrasses of the genus ...

Matt Clarke checks out a gorgeous wrasse for the marine tank. Scientific name: Halichoeres rubricephalus, Kuiter and Randall, 1995. Common name: Red-head wrasse. Origin: Endemic to the Flores and ...