Espen Bergersen / Close-up of a spyhopping Humpback whale (Megaptera novaeangliae) showing the knobs (tubercles) which are enlarged hair follicles possibly used for sensory purposes. Kvaloya, Troms, Northern Norway. November.

Chien Lee / Whitehead's Broadbill (Calyptomena whiteheadi) male at nest, Malaysia

Chien Lee / Whitehead's Broadbill (Calyptomena whiteheadi) male feeding chick at nest, Malaysia

Chien Lee / Whitehead's Broadbill (Calyptomena whiteheadi) male, Lawas, Sarawak, Borneo, Malaysia