How do jellyfish control their body temperature?

Jellyfish don't actively control their body temperature. They are cold-blooded, also known as ectothermic, meaning they rely on their environment to regulate their body temperature.

Here's how it works:

* Conduction: Jellyfish gain heat through contact with the water around them.

* Convection: They also absorb heat from the movement of water currents.

* Radiation: Jellyfish can absorb heat from the sun's rays.

They do not have internal mechanisms like mammals or birds to generate their own body heat. This means their body temperature will fluctuate depending on the temperature of the water they are in.

However, jellyfish have some adaptations to help them cope with changing temperatures:

* Water density: Water is a good conductor of heat, so jellyfish readily lose heat to colder water and gain heat from warmer water.

* Gelatinous body: Their gelatinous bodies, composed largely of water, help them adjust to temperature changes quickly.

* Depth and location: Some jellyfish species may migrate to deeper, cooler water during warmer periods or to shallower, warmer water during colder periods to maintain a suitable temperature range.

Overall, jellyfish are at the mercy of their environment when it comes to temperature regulation. They rely on their surroundings to maintain a stable temperature, and their adaptations help them survive within the range of temperatures they can tolerate.