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ocean
Of all apex predators, the white shark Carchardon carcharias (commonly known as the great white) is perhaps the most fascinating. The potential danger from (very rare) human interaction has embedded the species in our national consciousness. New research has used genetic analysis in a world-first effort to accurately estimate Australian…
![Our Oceans Are Full Of Plastic [Infographic]](https://www.lifehacker.com.au/content/uploads/sites/4/2017/10/platicoscnea.jpg)
Why is the sea salty? The short answer is that water dissolves the salts contained in rocks, and these salts are carried in the water to the sea. We take a look at the science.
If you’re on a sinking ship or you fall overboard, and you don’t have a legitimate flotation device, it’s time for the pants to come off. This clever survival trick will help you float on the water so you use less energy while waiting for someone to rescue you.
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