A team of scientists successfully captured the birth of a sperm whale, where other females assisted her during this unique moment. The event occurred off the coast of Dominica in the Caribbean on July 8, 2023, with the female known as Rounder surrounded by family members and peers as she prepared to give birth to her second calf.
For five and a half hours, the scientists documented the group's behavior, observing them from a boat and filming them using drones, in addition to recording underwater sounds. The data they collected, which was published in two scientific journals, is considered extremely rare in the history of science.
Details of the Event
The birth of a sperm whale is a rare event, with only nine recorded out of 93 species of whales, dolphins, and seals giving birth in the wild. What makes this event even more remarkable is that unrelated whales were assisting in the birthing process. Shane Jiro, a member of the Ceti project team, explained that this is the first evidence of birthing assistance in non-primates, reflecting support across generations from grandmothers to mothers.
The birthing process lasted 34 minutes, during which the whale's tails appeared above the water before the calf was born. During labor, the adult female whales dove under Rounder's fin, often on their backs with their heads directed towards the birth canal.
Background & Context
The origins of whales date back over 36 million years, with their distant ancestors believed to have left the water and adapted to life on land, later becoming the only mammals to return to the ocean. This return required some evolutionary adaptations to prevent the calves from drowning. For instance, calves are born tail-first rather than head-first as seen in other mammals.
Although sperm whale calves become skilled swimmers within hours, they still risk drowning after birth. Therefore, other whales must lift the calf to prevent it from sinking and facilitate its first breath.
Impact & Consequences
These phenomena indicate a high level of social cooperation among whales, reflecting the importance of familial bonds in the animal kingdom. Scientists also recorded various sounds emitted by the whales, including notable changes in “vocalization style” during significant events, such as the approach of a pod of pilot whales after the birth.
The changes in vocalization demonstrate that the group was coordinating to support the birth or protect the calf, reflecting an advanced level of communication among these marine creatures.
Regional Significance
This discovery is significant not only for scientists but also for those interested in preserving marine environments in the Arab region. With increasing threats to marine life, such as overfishing and ocean pollution, understanding whale behaviors can help develop strategies for conserving these species.
Ultimately, this unique event showcases how marine life is full of wonders and highlights the importance of cooperation among living beings, calling for further research and study in this field.