Which animal's heart beats 1000 times in a minute? | The Next Master

Which animal's heart beats 1000 times in a minute? 

The animal with the highest recorded heart rate is the blue shark (Prionace glauca), which can have a heart rate of over 1000 beats per minute (bpm). This is much higher than the average human heart rate, which is around 72 bpm.

The high heart rate of the blue shark is thought to be an adaptation to its fast swimming style and its need to constantly move in order to breathe. As a result, the blue shark's heart needs to pump a lot of blood to its muscles and gills to supply the oxygen that the shark needs to survive.

The blue shark's heart is relatively small in relation to its body size, but it is able to pump a large amount of blood through its body in a short amount of time. This is achieved through a combination of a high heart rate and a high stroke volume (the amount of blood pumped with each beat of the heart).

Additionally, the blue shark's circulatory system is able to maintain a high blood flow to the shark's muscles and gills even when it is swimming at high speeds. This is achieved through a combination of large blood vessels and a specialized circulatory system known as a countercurrent exchange system.

It's important to note that while the blue shark's heart rate can reach over 1000 bpm, this is only during short bursts of activity, such as when it is hunting or escaping from predators. The average heart rate is around 150 bpm.

Another animal that has high heart rate is the Etruscan shrew (Suncus etruscus) which has a heart rate that can reach up to 1200 bpm. Due to its small size, the Etruscan shrew has a high metabolism to maintain body temperature and energy needs, thus it needs a high heart rate to pump blood and oxygen to its body.

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