Category: Adaptation

In many natural environments, nutrient scarcity is not the exception but the rule, with bacteria frequently encountering prolonged periods of deprivation. When nutrients are low, bacteria can respond with a series of sophisticated survival tactics, including forming hardy endospores, entering dormancy, or even resorting to cannibalism.

According to one estimate, about 380 million hectares—almost one-third of the world's cultivated land—is affected by salinity. So, is there salt tolerance? Absolutely, and it is a complex biological phenomenon that enables certain organisms, from plants to microbes, to survive in high-salt environments. This adaptation is crucial for biodiversity and holds significant implications for agriculture and climate change.

In regions near the North and South Poles, where temperatures plummet well below freezing, traditional diets are often very high in fat. People of the cold region eat too much fat primarily to generate the intense metabolic heat and insulation needed to survive and thrive in freezing temperatures. This practice is rooted in a combination of evolutionary adaptation, physiology, and cultural history.