Douglas Hamilton

" It's the find of a lifetime," says astronomer Douglas Hamilton of the University of Maryland, College Park.

“通常，这需要用一生的时间去发现，”马里兰大学帕克分校的天文学家道格拉斯·汉密尔顿说。

Saba Douglas Hamilton joins arctic expert Jason Roberts in the remote Svalbard Archipelago to find out.

北极居民之一的北极熊的身体构造有赖严寒天气才能正常地生活,温室效应对它们造成什麽影响?

"it's the find of a lifetime, " says astronomer douglas hamilton of the university of maryland, college park.

“通常，这需要用一生的时间去发现，”马里兰大学帕克分校的天文学家道格拉斯·汉密尔顿说。