With relations between the U.S. and Russia at their worst point since the Cold War ended, this was a particularly alarming sight to the U.S. military. Russian fighter jets making extremely close flight to U.S. Navy destroyer. This was recorded earlier this week aboard the USS Donald Cook.

自从冷战时期，美国和俄罗斯的关系极度恶化结束后，现在美国军方又目睹了令人震惊的景象。俄罗斯战斗机贴身擦过美国海军驱逐舰。本周早些时候，美国唐纳德·库克号驱逐舰记录了上述一幕。

It was sailing in the Baltic Sea in Northern Europe. The Russian planes were unarmed, but a U.S. official says one flew within 30 feet of the ship and a very aggressive style of flight.

唐纳德·库克号驱逐舰当时正航行在北欧的波罗的海。俄军机以极低高度飞行，以挑衅姿势，约30英尺靠进美国军舰。

Encounters between American and Russian ships and planes are common. There`s not much concern about them as long as they`re done safely. But the U.S. military says this wasn`t safe, and up-close events like this between America and Russia have become more common in recent months. The U.S. has been increasing its military presence in nearby countries, including some that share borders with Russia, to reassure American allies that it supports them.

美国和俄罗斯的船只以及飞机相遇非常常见。只要它们安全着陆，就无需存在过多担忧。但是美国军方称这一举措已经构成威胁，因为在最近几个月，俄武器过分接近美国武器频率增加。美方已在周边国家增加了军事部署，如与俄罗斯接壤的相关国家。美国这一举措旨在向盟友表示，自己将会向它们提供支持。

A team of scientists captured stunning video of a swarm of crabs off the coast of Panama.

科学家们捕捉到一些视频，这些视频让人不可思议，一群螃蟹在远离巴拿马海岸。

The researchers were studying biodiversity at the Hannibal Bank Seamount when they made the sighting.

研究人员在汉尼拔银行海底山研究生物多样性时，看到了上述场面。

"We just saw this cloud but had no idea what was causing it," Jesus Pineda, biologist, Woods Hole Oceanographic Institution.

“我们只是看到一窝蜂的螃蟹，但是我们并不知道造成上述现象的原因。”杰西·皮涅达，是伍兹霍尔海洋研究所的生物学家。

"Once we saw them moving -- swarming like insects -- we couldn`t believe it," Jesus Pineda, biologist, Woods Hole Oceanographic Institution.

“当我们看到它们在移动时——一就像昆虫一样一窝蜂——我们感到不可思议。”皮涅达说道。

The find was made around 1,200 feet deep in low oxygen waters.

这一发现是在低氧水域周围1200英尺深。

According to Pineda, this species of red crab had never been witnessed that far south.

按照皮涅达的说法，人们从未在南部地区看到过红蟹。

"To find species at the extreme of their range and to be so abundant is very unusual," Jesus Pineda, biologist, Woods Hole Oceanographic Institution.

杰西·皮涅达还说道，“在极端条件下找到丰富的物种，是不太常见。”

With relations between the U.S. and Russia at their worst point since the Cold War ended, this was a particularly alarming sight to the U.S. military. Russian fighter jets making extremely close flight to U.S. Navy destroyer. This was recorded earlier this week aboard the USS Donald Cook.

It was sailing in the Baltic Sea in Northern Europe. The Russian planes were unarmed, but a U.S. official says one flew within 30 feet of the ship and a very aggressive style of flight.

Encounters between American and Russian ships and planes are common. There`s not much concern about them as long as they`re done safely. But the U.S. military says this wasn`t safe, and up-close events like this between America and Russia have become more common in recent months. The U.S. has been increasing its military presence in nearby countries, including some that share borders with Russia, to reassure American allies that it supports them.

A team of scientists captured stunning video of a swarm of crabs off the coast of Panama.

The researchers were studying biodiversity at the Hannibal Bank Seamount when they made the sighting.

"We just saw this cloud but had no idea what was causing it," Jesus Pineda, biologist, Woods Hole Oceanographic Institution.

"Once we saw them moving -- swarming like insects -- we couldn`t believe it," Jesus Pineda, biologist, Woods Hole Oceanographic Institution.

The find was made around 1,200 feet deep in low oxygen waters.

According to Pineda, this species of red crab had never been witnessed that far south.

"To find species at the extreme of their range and to be so abundant is very unusual," Jesus Pineda, biologist, Woods Hole Oceanographic Institution.