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Evolution

The alligator gar, and other gar species, are “living fossils” that it shows little species diversity or physical differences from ancestors that lived tens of millions of years ago. (Photo by Solomon David)

How ‘Living Fossils’ Like Gars Persist Over Millions of Years

Categories Life & Non-humans
Top and left images are adult sea lampreys. On the right is a fluorescence microscopy image of a developing sea lamprey embryo.

An awkward family reunion: Sea monsters are our cousins

Categories Life & Non-humans
Rendering of pleurocystitid (left) next to the soft robot they modeled after the ancient sea creature.

How ancient sea creatures can inform soft robotics

Categories Life & Non-humans, Technology
fossil tree

Rare 3D fossils show that some early trees had forms unlike any you’ve ever seen

Categories Earth, Energy & Environment, Life & Non-humans
Adult Periodical Cicada Credit: Ed Reschke via Getty Images

Swarming cicadas, stock traders, and the wisdom of the crowd

Categories Life & Non-humans, Physics & Mathematics
Figure 1. (A) Reconstructed Caudipteryx © Christophe Hendrickx. Used under the terms of the Creative Commons license (CC BY-SA 3.0). Licensing details: [https://creativecommons.org/licenses/by-sa/3.0/deed.en]. (B) Robopteryx, imitating the morphology of Caudipteryx, positioned in front of a grasshopper in the field (marked by a red arrow). (C) Grasshopper tested in the experiments.

Feathered Dinosaurs’ Surprising Purpose: Scaring, Not Flying

Categories Life & Non-humans
Skeleton at the site in Jubuicabeira II, Brazil.

Syphilis-like diseases were already widespread in America before the arrival of Columbus

Categories Health
The Welsh countryside near the Coed Cochion Quarry, where the fossils were found. Picture: Anthony Clarke

Key moment in the evolution of life on Earth captured in fossils

Categories Earth, Energy & Environment, Life & Non-humans
An X-ray reconstruction of a 32-million-year-old fossil kelp holdfast colored to show the base (orange), holdfast (yellow) and the bivalve shell to which it attached (blue).

Pacific kelp forests are far older that we thought

Categories Earth, Energy & Environment
predator worms swimming under water

Ancient Predator Fossils Unearthed in Greenland

Categories Life & Non-humans
Recent studies show that many lemurs do not live individually, but in pairs of females and males. (Image: istock.com/Goddard_Photography)

Early primates likely lived in pairs

Categories Life & Non-humans, Social Sciences
Artist illustration of Nanotyrannus attacking a juvenile T. rex.

“Juvenile T. rex” fossils are a distinct species of small tyrannosaur

Categories Life & Non-humans
Prehistoric people are attacking an elephant

People, not the climate, caused the decline of the giant mammals

Categories Life & Non-humans
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