Swarms of them thrive here because they eat algae that lives in sea ice. so researchers want to know if this crucial marine food supply is decreasing as rising temperatures melt the ice. and they re using another scientific tool. with the drone we are measuring how fat it is becoming over the season and that is important because some populations around the world are getting skinny because they are not getting enough to eat because of climate change impacts. by keeping a check by keeping a check on its gigantic residents, researchers hope to understand how to protect this fragile wilderness for all the wildlife here. victoria gill, bbc news, in the antarctic peninsula. and finally, the paris olympic arejust right around the corner and its organisers unveiled a new display of five olympic rings mounted on the city s iconic eiffel tower. it s to mark 50 day until the start of the summer games. the rings are made from recycled french steel and each
No, it s not a weapon, it s a tool. that tool allows natalia to take whale tissue biopsies. a tube on the end of each arrow takes just a tiny nick. ..out of each animal s body. the sample is three centimetre, something like that, for an animal, you know 16 metres long. so it s essentially a mosquito bite. well, it clearly didn t bother them very much because they re hanging around the boat. analysing this tissue can reveal if a female humpback is pregnant. in years that we have low sea ice then the following year, you have lower pregnancy rates, and that s as good as it gets in, like, you know, getting to know the environment and getting to know the effects of all these conservation threats on the animals. this is what the whales and many other animals here feed on antarctic krill. swarms of them thrive here because they eat algae that lives in sea ice. so researchers want to know if this crucial marine food supply is decreasing as rising
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