Tasalämpöisinä

Tasalämpöisinä is a Finnish term that translates to "warm-blooded" or "homeothermic" in English. It refers to a characteristic of certain animals, primarily birds and mammals, to maintain a stable internal body temperature regardless of the external environment. This physiological adaptation allows these organisms to thrive in a wide range of climates.

The ability to maintain a constant body temperature is achieved through various mechanisms. These include metabolic heat production, insulation such as fur or feathers, and physiological responses like shivering or sweating to regulate heat loss or gain. The internal temperature of tasalämpöisinä animals is typically maintained within a narrow optimal range, crucial for the efficient functioning of enzymes and cellular processes.

In contrast to tasalämpöisinä animals are poikilothermic, or "cold-blooded," animals, whose body temperature fluctuates with their surroundings. The energy expenditure required to maintain a stable internal temperature is significant, necessitating efficient metabolism and a consistent intake of food. This metabolic cost is a trade-off for the advantages of independence from environmental temperature fluctuations, such as sustained activity levels and the ability to inhabit diverse habitats. The term is fundamental in biological classification and understanding animal physiology.