A pair of rare Amur tiger cubs are making their public debut at the Minnesota Zoo. “It's just pure excitement that they're feeling this grass and and this new terrain and starting to feel more of what they would be feeling in the wild environment,” Trista Fischer, Minnesota Zoo zoologist said. Andre and Amalia exlpored their outdoor enclosure for the first time Wednesday. The cubs' mother Dari gave birth to the pair in May. Amur tigers, also known as Siberian tigers, are endangered. Scientists estimate the wild population is only around 400-500 animals,