Collecting the dissolved oxygen from water is a complex operation that fishes perform by the way of their gills. These organs are made with permeable membranes which allow gas exchanges between the water and the blood of the animal. 99 more words
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Sounds produced by aquatic animals as whales are continuously recorded by the way of hydrophones placed all around the world. These hydrophones allowed scientists to detect a very surprising signal revealing the pattern of a blue whale call but a frequency of 52 Hz much lower than other blue whales (which produce sounds between 10 and 39 Hz). 103 more words
At this point, you don’t have to be a parent to say another Elsa sighting is one too many, or that you might lose it the next time you see a “Frozen” lip sync on YouTube. 557 more words