Humpback Whales Play Hero and Protect Smaller Marine Mammals From Orcas

In January 2009, a research team left South America to Antarctica. They hoped to document how the killers, also known as the Orcas, worked together to create a wave that could bring down a seal of the safety of an ice floe.

The team observed a 10 orcas pod around two humpback whales. The whales were agitated and the team initially thought that the orcas tested to see if one or the other whale was weak. But when they examined the video sequences, they saw a seal nestled between the massive whales.

Defeated, the predators left. Fifteen minutes later, the POD targeted another seal by creating a wave that broke the Floe and left the condemned seal blocked on a small piece of ice. Before the whale killers could attack, the same humpback whales came to the rescue of the seal.

But why would a humpback whale spend energy to protect a seal? Scientists have studied this unique behavior and believe that they have a better understanding of the reasons why the bumps play Hero.

Why do whales save seals?

Marine ecologist Robert L. Pitman was on the research ship that saw the two humpback whales protect seals from orcas. In the years that followed, similar videos have surfaced from a bump protecting potential prey.

“It is a fairly dramatic behavior, especially once you know what’s going on, and people often publish it online somewhere,” said Pitman, Marine ecologist of the Mammal Institute of Oregon State University.

The humpback whale (Megaptera novaeangliae) is a solid animal, weighing up to 40 tonnes and extending up to 60 feet. The killers (Orcinus Orca) are considered the first predator of the ocean, but they are much smaller. At Max, they can weigh 11 tonnes and reach 32 feet.

A healthy bunch adult can push an orca. But a calf, an injured or elderly adult can prey. Scientists believe that this vulnerability can be motivating for bumps.

Learn more: Bump whales offer humans smoke rings of giant bubbles as a sign of friendship

Bump whales protecting others

In a 2017 article in Marine Mammal Science, a team of researchers collected more than 100 accounts of interaction between humpback whales and orcas. Observations came from people around the world, including researchers, naturalists and passengers during whale observation visits.

The team was distinguished between the two types of orcas – fish eaters and mammal eaters. Mammal eaters are a threat to stroke calves, and the study revealed that bump whales were more likely to go offensive with these types of orcas.

The observers have not always seen who triggered the meeting. But when the initiator was known, the study revealed that the humpback whales approached orcas 58% of the time. Most of them were mammal eaters who were attacking prey or who had already started to eat. The observers reported having seen the bumps interrupting the attacks against their own type 17% of the time. In the remaining 83% of the meetings, the bumps were offensive for other species such as other whales, California sea lions and port seals.

In comparison, Orcas approached the humpback whales 42% of the time. In most of these cases, the orcas were mammal eaters who targeted a calf or a young bump. In two reports, the observers thought that the orcas have succeeded in their murder.

Bump Heroes?

Although commentators on the Internet may think that humpback whales are altruistic when they come to the rescue, scientists think that this behavior must somehow benefit whales because the attack could be another humpback whale, and it could be a parent.

Mammalian eaters move silently during prey hunting, but they become quite vocal when the attack begins. These sounds can alert the humpback whales which are miles.

A question that remains is the reason why the humpback whales continue to defend prey once arrived on the stage and realize that the orcas do not target another bump.

Pitman thinks that it is not as long as the bumps are trained to save the seals. Rather, they have an instinct to repel the orcas, and other species benefit from it.

“We called him” inadvertent altruism “, explains Pitman.

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