The size of the heart of blue whales will take your breath away

The blue whalesmajestic creatures of the oceans, are the largest animals to ever exist on Earth, surpassing even dinosaurs in size. These giants of the sea can grow up to 33 meters longa size that goes far beyond that of a basketball court, and requires a cardiovascular system great for supporting their impressive body.

The Heart of a blue whale is, in fact, the largest in the animal kingdom: weighs approximately 180 kgas much as a studio piano, and is approximately 1.5 meters. Every beat pushes around 60 liters of blood across their massive body, an incredible volume compared to the 70 ml of a human heart. This beat can be heard up to about three kilometers awaymaking it an impressive sound that resonates in the depths of the sea.

A blue whale’s heart rate varies greatly based on activity. On the surface, the heart beats between 25 and 37 times per minute, but when it dives deeply to obtain food or to avoid danger, the heartbeat slows down to just 2-10 beats per minute.

This ability to reduce the pace helps conserve oxygen ea resist increasing sea pressureallowing the whale to stay submerged longer. Their large, elastic aorta plays a critical role, regulating blood flow between beats to maintain constant circulation and conserve energy during prolonged dives.

They are at risk of extinction due to intensive hunting

In addition to their impressive physical characteristics, blue whales are known for their singing. Only males emit these melodies, which are believed to have a mating function. In recent decades, scientists have observed that song frequencies za phenomenon whose reason is still shrouded in mystery.

Blue whales are today at risk of extinctionwith a global population of approximately 10,000-25,000 specimens. Once there were hundreds of thousands, but the intensive hunting brought them to the brink of disappearance. However, in some areas such as California, the blue whale population is showing signs of recovery thanks to conservation efforts.

Even after death, these whales continue to play an important ecological role. Their bodies, sinking into the ocean depths, become source of food for many other marine creaturescontributing to the marine ecosystem in ways that reflect the importance and majesty of these giants of the sea.