Their first appearance came on the anniversary of their mother’s arrival at the Philadelphia Zoo 93 years ago. The tortoise species is considered critically endangered. (AP Video: Tassanee Vejpongsa)

Four babies from a nearly century-old pair of Galapagos tortoises make their public debut

Their first appearance came on the anniversary of their mother’s arrival at the Philadelphia Zoo 93 years ago. The tortoise species is considered critically endangered. (AP Video: Tassanee Vejpongsa)