Animals with three hearts are certain cephalopods such as octopuses and cuttlefish. The heart morphology of these animals differs from other types of vertebrates such as mammals, birds, and reptiles, which have one primary heart and two accessory hearts.
Inside the bodies of octopuses and cuttlefish, the main heart, called the "body heart," is located in the main cavity and can deliver blood to various parts of the body through a series of blood vessels. The two auxiliary hearts are called "branch hearts", and their function is to transport oxygen-rich (oxygenated) blood from the gills to the body center, thereby ensuring the normal functioning of the body.
It should be noted that animals with multiple hearts have developed unique physiological structures and adaptive capabilities during the evolution process, giving them certain advantages in the underwater environment. However, there are still many challenges and difficulties in studying these animals in human life and scientific research.
animal tags：
you may also like
Myna is a general term for different species of birds, including ring-necked starling, white-naped starling, gray-naped starling, etc. The conservation status of these myna birds varies by species. For example, the ring-necked starling is a national second-level protected animal in m...
Grass carp, carp and crucian carp are common freshwater fish, and they have some obvious differences in appearance. Grass carp: Grass carp generally has a long body with flat sides and a small and flat head. The back of the body is blue-grey, and the belly...
Ticks often choose to bite specific areas on the human body. Here are some of the more common tick bite locations: 1. Head and neck: Ticks like to find suitable places to suck blood in the hair, behind the ears, neck, etc. 2. Armpits and groin: These...
Hamsters are common pets that are usually kept at home. They are social, lively, lovable little animals that are relatively easy to care for. The following is a detailed introduction to the life span of hamsters:Life span:Generally speaking, the life span of hamsters can be about 2 to 3 years, and s...
If your cat's eyes are draining and unable to open fully, this may be a symptom of an eye infection or other eye problem. Here are some common reasons why this may occur: 1. Conjunctivitis: Conjunctivitis is an inflammation of the conjunctiva (the transparent membrane on...
Sunfish is a freshwater fish belonging to the order Coelacanth and family Koi, native to North America. Sunfish usually live in slow-moving or still water freshwater environments, such as rivers, lakes, ponds, etc.The food of sunfish in the wild includes insects, zooplankton, small crustaceans, etc....
Tortoises and sea turtles are two different species of turtles. They have obvious differences in living environment, physiological characteristics and living habits. The following is a detailed introduction and difference between tortoises and sea turtles: 1. Tortoise livi...
The health and production performance of chickens need to be supported by various trace elements. The following are several common methods of supplementing trace elements for chickens: 1. Feed additives: Some feed additives containing trace elements can be added to the feed, such as...
Email: jsset#163.com (change # to @) Please indicate your purpose of visit! Guangdong ICP No. 2022053326 XML| map| Chinese
