Baird’s beaked whale is primarily found in schools containing from two to nine individuals. However, when travelling, these schools can expand to up to 30 individuals (2).
Baird’s beaked whale preys mainly upon cephalopods and deep-sea fishes (8). To obtain this deep-sea prey, Baird’s beaked whale is capable of diving for up to 67 minutes, although the majority of dives are no longer than 30 minutes (2). Following a dive, Baird’s beaked whale spends between 1 and 14 minutes at the surface before diving again (2). At the surface, this species blows continuously, making it easy to identify (2).
Male Baird’s beaked whales may fight for access to fertile females, using their distinctive ‘battle teeth’. These teeth are supported by particularly dense bone, which provides the reinforcement needed during confrontations (6). The growth layers of these teeth can be used to determine the individual’s age (6).
The female Baird’s beaked whale gives birth after a gestation period thought to last around 17 months (2). Female Baird’s beaked whales reach sexual maturity at 10 to 15 years of age, but males do not reach sexual maturity until about 30 years (2).
The male Baird’s beaked whale lives to about 84 years and the female to between 55 and 84 years (2), and thus a higher proportion of males are often found within the adult population (2).