Amazing Earth

Watch Underwater Worms Poop—A Lot

You're watching sand poop being squeezed out into the Red Sea off Egypt. The materials are likely the fecal casts of enteropneust hemichordate worms, commonly called acorn worms. Acorn worms ingest sediments that are mixed with organic material. They digest the organic material and excrete the inorganic material. This is what their poop looks like.

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Champion High Wire Performers Cross Between Frozen Waterfalls in the Alps

Watch these two high-wire performers more than 500 feet up, high up in the frozen Alps.  
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Video: How Spinosaurus used its tail to swim

An animation shows how Spinosaurus may have used its paddle-like tail for propulsion in the water. Modeling: Davide Bonadonna and Fabio Manucci; animation and texturing: Fabio Manucci; color design: Davide Bonadonna, DI.MA. Dino Makers; scientific supervision: Simone Maganuco and Marco Auditore; reconstruction based on: Ibrahim et al., 2020, Nature.
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Watch Amazon Animals Discover Themselves in a Mirror

A mirror was set up in the Amazon rainforest by a wildlife photography workshop called Untamed Photography. The aim was to better understand intelligence of big cats in the Amazon. Wild cats and other animals that approached reacted in various ways. Some were scared. Others were curious. It’s relatively rare for an animal to have the capacity for self-recognition. It takes human babies 18 to 24 months to catch on to what they're seeing in the mirror. Some animals like dolphins, elephants, and some great apes know they’re looking at themselves. Others just stand perplexed in front of the glass.

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