Ziphiids consist of 22 species of beaked whale. No population estimates exist for Shepherd's beaked whale. Gray's beaked whale is very gregarious. This species is fairly gregarious and strands relatively frequently for a beaked whale. The longest time period for a beaked whale living in captivity was 25 days. A possible new form of giant beaked whale are using these areas as well. The main prey of the strap-tooth beaked whale is considered to be oceanic squid species. Unlike the Baird's beaked whale, Arnoux's have slightly hooked dorsal fins. Arnoux's beaked whale was described by Georges Louis Duvernoy in 1851. Gray's beaked whale is a fairly slender member of the genus. In 2016, a new species of beaked whale, "Berardius beringiae", was discovered near the island. Beaked whale species are often sexually dimorphic one or the other sex is significantly larger. The beaked whale has occasionally been hunted, but has never been a specific target.