![2.1-Billion-Year-Old Tracks May Be Giant Ancient "Slime Molds" [Video]](https://static.scientificamerican.com/blogs/cache/file/2A078C59-0E9E-4EFF-8B7641A36F0EEE57_agenda.jpg?w=275&h=154&fit=crop)
2.1-Billion-Year-Old Tracks May Be Giant Ancient "Slime Molds" [Video]
Whatever made these structures lived 1.4 billion years before the first animals
The Artful Amoeba
A Blog About the Weird Wonderfulness of Life on Earth
The Case for Transmissible Alzheimer's Grows
What separates a lethal prion from a dementia-associated amyloid plaque? Maybe not much
Inside Earth, Microbes Approach Immortality
Mostly dead is slightly alive
Prions, Nearly Indestructible and Universally Lethal, Seed the Eyes of Victims
Discovery suggests worrying transmission possibilities
Fanworms, "Nature's Eye Factories," Stick Them Pretty Much Anywhere
Necessity is the mother of invention
Scientists Sculpt Bacteria into Hearts, Moons and Stars
Because if you can grow a square watermelon…, why not E. coli?
Eye Candy: Fossil Flowers Bloomed When Dinosaurs Ruled Earth
Seven complete specimens of 100-million-year-old flower found preserved in amber
Magic Mushroom Drug Evolved to Mess with Insect Brains
For that matter, so did most natural recreational drugs
Marine Predator Problem? Try a Gastropod Hostage Backpack
It's hard out there for a shrimp
Ambitious Praying Mantis Discovers Sashimi
Is there nothing the raptorial insect won't try to eat?
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