requiem shark: any of numerous sharks from small relatively harmless bottom-dwellers to large dangerous oceanic and coastal species
vertebrate: animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium
portia tree: pantropical tree of usually seacoasts sometimes cultivated as an ornamental for its rounded heart-shaped leaves and showy yellow and purple flowers; yields valuable pink to dark red close-grained wood and oil from its seeds