![]() They have two branchial hearts that pump blood to the gills and one systemic heart that pumps blood to the rest of the body. ![]() In addition, certain species of amphibians such as the axolotl have three hearts. A lungfish has one heart for pumping blood to the gills and another heart for pumping blood to the rest of the body. Similarly, some species of fish such as lungfish and mudskippers have two hearts. The gill hearts pump blood to the gills, while the systemic heart pumps blood to the rest of the body. An octopus has two gill hearts and one systemic heart. For example, some invertebrates such as octopus and squid have three hearts. However, some animals have multiple hearts. The single heart pumps blood through the circulatory system, providing oxygen and nutrients to the body’s cells and removing waste products. This includes mammals, birds, reptiles, and fish. Veterinarians use various tools such as ECG, echocardiogram and blood tests to examine animal’s heart health. It’s important to note that heart rate is only one aspect of an animal’s cardiovascular health, and other factors such as blood pressure, cardiac output, and oxygenation should also be considered. For example, an animal with a heart condition may have a faster or slower heart rate than a healthy animal. Certain medical conditions can also affect an animal’s heart rate. Age can also play a role, as an older animal may have a slower heart rate than a younger one. For example, an animal’s heart rate will typically increase during periods of exercise or stress. In addition to species, other factors can also affect an animal’s heart rate. For example, a snake’s heart rate is around 20-40 beats per minute. Fish and reptiles have a lower heart rate than mammals. Birds have high heart rates compared to mammals, with a pigeon’s heart rate reaching up to 600 beats per minute during flight. A lion’s heart rate is around 50-60 beats per minute, while a cheetah’s heart rate can reach up to 150 beats per minute during a chase. A dog’s resting heart rate is around 60-140 beats per minute. For example, a human’s resting heart rate is typically around 60-80 beats per minute, while a horse’s resting heart rate is around 28-44 beats per minute. The heart rate of animals varies depending on the species. Pulse of professional athlete: 40-60 record – 27 beats (professional cyclist).Human heart *Man resting heart rate varies with age: ![]() The heart of a blue whale Heart beats of animals per minute Let us take a closer look, how fast beating hearts in the animal world. Our heart rate increases when enhances our physical effort or when we get stress.Īs you might guess, the heart rate of most of the animals differs from the human pulse – a hibernating groundhog’s ( Marmota monax) heart beats only 5 times and a hummingbird’s heart 1,260 bpm. The human heart beats about 60-80 times per minute. Hearts are symbols of Valentine’s Day, but in the animal kingdom there many different hearts – small medium and huge. ![]()
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