Vigyyan on Instagram: "You won't believe what I found under the microscope! I've been searching for these incredible creatures for a year, and finally, here is the Hydra! 🌊 Often compared to jellyfish, these slow-moving, freshwater organisms look like aliens right out of a sci-fi movie. But the most shocking thing about the Hydra? They are considered biologically immortal! Watch as we get a super close-up view of its tentacles, which are armed with tiny, poisonous darts (nematocysts) used to in

History Everyday | This upscaled colorized footage (with sound added) shows the fire brigade on duty in 1890s Paris. At this time Paris used early public... | Instagram