The Dominican Republic has one of the largest and best Humpback breeding sanctuaries in the world. Every year, more than 4,000 whales visit the Bay of Samana with this purpose. Whale watching tours open to the public offer the opportunity to appreciate this creatures breeding and giving birth to their young without disrupting their natural habitat.
Found in oceans and seas around the world, humpback whales typically migrate up to 25,000 km (16,000 mi) each year. Humpback whales feed only in summer, in polar waters, and migrate to tropical or subtropical waters to breed and give birth in the winter when they fast and live off their fat reserves. Their diet consists mostly of krill and small fish. Humpbacks have a diverse repertoire of feeding methods, including the bubble net technique.
Fully grown males average 13–14 m (43–46 ft). Females are slightly larger at 15–16 m (49–52 ft); one large recorded specimen was 19 m (62 ft) long and had pectoral fins measuring 6 m (20 ft) each.
This giants are also famous for having amazing and intricate songs that are thought to have an important role in mate selection; however, they may also be used between males to establish dominance. Both male and female humpback whales vocalize, but only males produce the long, loud, complex songs. Each song consists of several sounds in a low register, varying in amplitude and frequency, and typically lasting from 10 to 20 minutes but can extend for more than 24 hours. Although cetaceans have no vocal cords, they generate their songs by forcing air through their massive nasal cavities (blowholes) located on the dorso.
Fun fact: Whales sleep by dozing off only half of their brain at one time, allowing the other half to surface, breathe, and return to the deep without awakening the other half.