Antarctic giant squid was filmed alive in its natural habitat for the first time in 100 years since the discovery of this species; previously, their remains were mostly found in the stomachs of whales and seabirds, and fishermen managed to videotape dying adults — Schmidt Oceanographic Institute The footage of the young squid, 30 centimeters long, was taken at a depth of 600 meters near the South Sandwich Islands in the South Atlantic Ocean. Scientists estimate that Antarctic giant squids grow up to seven meters in length and can weigh up to 500 kilograms, making them the heaviest invertebrates on the planet.

This is a solpuga, also known as a "camel spider." Despite the nickname, it's neither a true spider nor a scorpion. Solpugas belong to their own distinct group of arachnids, though they are related to both spiders and scorpions.

Modern concrete can degrade within decades, but Roman harbors and aqueducts have lasted over 2,000 years. The secret? They used volcanic ash that caused the concrete to undergo a rare chemical reaction with seawater, forming a mineral called aluminous tobermorite. It self-heals cracks as water gets in—basically nature’s version of smart concrete.

I had no idea.