在沃斯堡动物园，一只濒临灭绝的波多黎各冠蟾蜍通过试管受精诞生了

This baby is a scientific miracle — warts and all.

这个婴儿是科学上的奇迹——毫无瑕疵。

A highly endangered Puerto Rican Crested toad was hatched through in-vitro fertilization for the first time in history.

一种高度濒危的波多黎各冠蟾蜍在历史上首次通过体外受精孵化出来。

The one-of-a-kind amphibian is named Olaf, after the snowman in the “Frozen” films — a nod to the frozen sperm that was used to create him, the AP reports.

据美联社报道，这种独一无二的两栖动物以《冰雪奇缘》系列电影中的雪人奥拉夫命名，这是对用来创造雪人的冷冻精子的致敬。

Scientists used this method to help save the species from extinction. Olaf was the first of 300 hatchlings to be born at the Fort Worth Zoo in Texas. A previous attempt at toad IVF had failed.

科学家们用这种方法帮助这个物种免于灭绝。奥拉夫是德克萨斯州沃斯堡动物园300只幼崽中的第一只出生的。蟾蜍体外受精的前一次尝试失败了。

“We don’t typically name our toads, but that one deserved special recognition,” Diane Barber, ectotherms curator at the zoo, told the wire service. “We were super, super excited. … You kind of hold your breath for 30 days to see if they’re going to metamorphose.”

“我们一般不会给我们的蟾蜍起名字，但这只蟾蜍应该得到特别的认可，”动物园外恒温动物管理员黛安·巴伯(Diane Barber)告诉通讯社。“我们非常非常兴奋。你得屏住呼吸30天，看看它们是否会变形。”

Scientists traveled to Guayanilla last year to collect sperm from six toads, who excrete semen as they urinate.

科学家们去年前往瓜亚尼拉岛，从六只蟾蜍身上采集精子，它们在排尿时排出精液。

The effort sometimes required the scientists to get a little hands on.

这种努力有时需要科学家们动手去做。

“It’s kind of weird, but if you hold them in your hand and look at them and bark at them like a dog, they will pee,” explained Barber.

“这有点奇怪，但如果你把它们拿在手里，看着它们，像狗一样对着它们叫，它们就会撒尿，”巴伯解释说。

Of the more than 300 toads born via IVF, 100 were sent to other zoos with captive breeding programs. The remaining 200 will be sent to Puerto Rico in December via FedEx to be released into the wild.

在300多只通过试管受精出生的蟾蜍中，有100只被送到了其他有人工繁殖计划的动物园。剩下的200只将在12月通过联邦快递送到波多黎各，然后放生。