Interesting Engineering on MSN6 小时
Whale poop power: Iron and copper-rich feces fueled ancient ocean food chain
The team found that whale feces contained significant amounts of iron, meaning that whales fertilize the ocean as they feed and excrete waste.
Geographical9 小时
The longest animal migrations in the world
From birds travelling non-stop for 11 days, to the incredible feats of caribou, discover some of the longest migrations animals ...