What organisms don't like heat?

Organisms that don't thrive in heat include psychrophiles, which are cold-loving microorganisms that prefer temperatures below 15°C (59°F). Many species of fish, amphibians, and certain plants also struggle in high temperatures, as they can lead to stress, reduced reproductive success, or even death. Additionally, some bacteria and fungi, particularly those that are accustomed to cooler environments, can be adversely affected by increased heat, impacting their growth and metabolic functions.