Hummingbirds lower their body temperature below 4°C at night

Hummingbirds can drop their body temperature below 40°F when they rest to save energy for the next day Hummingbirds use a process called torpor to lower body temperature at night  This process allows the animal to conserve as much energy as possible  Sees heart rate slow down from 1,000 to 50 beats per minute   Researchers … Read more

Hummingbirds can identify at least eight colours that are invisible to humans

Hummingbirds can spot at least eight colours that are invisible to humans, a study has found. Humans have three types of light-sensitive cone in their eyes, enabling them to see red, green and blue. But birds have a fourth – ultraviolet – revealing colours we can’t even imagine. The difference means that while man can … Read more