What do you believe is the single most important factor driving up the cost of living in Nigeria?

A new PeerJ study has revealed that sloths, the famously slow-moving creatures of Central and South America, may face existential threats due to climate change. The research, conducted by scientists studying the metabolic response of sloths to rising temperatures, suggests that the energy limitations of these animals could make survival untenable by the end of the century, particularly for high-altitude populations.

The study, titled "Sloth Metabolism May Make Survival Untenable Under Climate Change Scenarios," investigates how two-fingered sloths (Choloepus hoffmanni), living in both highland and lowland regions, respond to varying ambient temperatures.

Using indirect calorimetry, researchers measured oxygen consumption and core body temperature of sloths under conditions mimicking projected climate changes. Their findings indicate a troubling future for sloths, especially those residing in high-altitude areas.

Lead researcher Dr. Rebecca Cliffe explained, "Sloths are inherently limited by their slow metabolism and unique inability to regulate body temperature effectively, unlike most mammals. Our research shows that sloths, particularly in high-altitude regions, may not be able to survive the significant increases in temperature forecast for 2100."

The research found that sloths from highland regions experience a sharp increase in their resting metabolic rate (RMR) as temperatures rise. In contrast, lowland sloths, while better adapted to higher temperatures, initiate metabolic depression as a survival mechanism when temperatures exceed their comfort zone, known as the "thermally-active zone" (TAZ).

• Read More