3 echidnas born after 29 years in Sydney zoo
Three baby echidnas, a variety of Australian mammals covered in hair and spines, were born in Taronga Zoo, Sydney, after 29 years. The echidnas, also known as puggles, weigh between 250 and 500 grams, and spend their days sleeping, as per the zoo authorities. Notably, echidnas are one of only two Australian mammals that lay eggs.