Humanity may not be extraordinary but rather the natural evolutionary outcome for our planet and likely others, according to a new model for how intelligent life developed on Earth. The clownfish-anemone living arrangement is one of the most widely recognized examples of symbiosis. Researchers have made a breakthrough in understanding how anemonefish can live safely among sea anemones without being stung by their venomous tentacles, solving a century-long mystery. Scientists have discovered that anemonefish have evolved to maintain very low levels of sialic acid in their skin mucus to avoid triggering the release of nematocysts (stinging cells) in their sea anemone hosts. The researchers found that sea anemones also lack these sugar compounds in their own mucus, likely to avoid stinging themselves. Their findings suggest anemonefish might be using a similar protective strategy to their hosts. A recent study reveals that age plays a significant role in the outcomes of intermittent fasting. Researchers discovered that chronic intermittent fasting disrupted the development of insulin-producing beta cells in young mice. The findings raise concerns about potential risks for humans, especially teenagers. A unique dataset of Type Ia Supernovae being released today could change how cosmologists measure the expansion history of the Universe. Under-sea mountains are key locations for predators -- with 41 times more sharks than the open ocean, new research shows. Scientists have for the first time demonstrated play-like behavior in flies. They found that fruit flies (Drosophila melanogaster) voluntarily and repeatedly visited a carousel. This Valentine's Day, millions of pounds worth of chocolate will be exchanged as gifts, but climate change and biodiversity loss imperil future global supplies of this treat. A new research study demonstrates that sustainable agricultural practices that both protect pollinator populations and mitigate climate risks could help secure -- and...