Echidnas are one of the most energy efficient mammals on the planet - it's body temperature can drop below 5 degrees!
Vunyingi bya vamaxindyana lava tshamaka enkeleni etindhawini leti titimelaka ngopfu swi tikomba onge mimiri ya vona hi yona leyi titimelaka ku tlula swiharhi hinkwaswo - loko miri wa maxindyana loyi wu sungula ku titimela wu fika kwalomu ka -2,9 wa tidigri!