Reference Terms
from Wikipedia, the free encyclopedia
Stone tool
A stone tool is, in the most general sense, any tool made of stone.
Note: The above text is excerpted from the Wikipedia article "Stone tool", which has been released under the GNU Free Documentation License.
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Fossils & Ruins News
May 27, 2025
May 23, 2025 — A group of fossils of elasmosaurs -- some of the most famous in North America -- have just been formally identified as belonging to a 'very odd' new genus of the sea monster, unlike any previously ...
May 22, 2025 — A new study proves that a type of genetic element called 'introners' are the mechanism by which many introns spread within and between species, also providing evidence of eight instances in which ...
May 15, 2025 — An international genomics study has revealed that early Asians undertook humanity's longest known prehistoric migration. These early humans, who roamed the earth over 100,000 years ago, are believed ...
May 14, 2025 — The origin of reptiles on Earth has been shown to be up to 40 million years earlier than previously thought -- thanks to evidence discovered at an Australian fossil site that represents a critical ...
Latest Headlines
updated 12:56 pm ET
May 26, 2025 — Contrary to widespread assumptions, the largest shark that ever lived -- Otodus megalodon -- fed on marine creatures at various levels of the food pyramid and not just the top. Scientists analyzed ...
May 26, 2025 — A gene that regulates the development of roots in vascular plants is also involved in the organ development of liverworts -- land plants so old they don't even have proper roots. The discovery ...
May 23, 2025 — A new study uses metabolic profiling to uncover ancient knowledge systems behind therapeutic and psychoactive plant use in ancient ...
May 23, 2025 — Cold-adapted animals started to evolve 2.6 million years ago when the permanent ice at the poles became more prevalent. There followed a time when the continental ice sheets expanded and contracted ...
May 21, 2025 — New research shows that dentine, the inner layer of teeth that transmits sensory information to nerves inside the pulp, first evolved as sensory tissue in the armored exoskeletons of ancient ...
May 22, 2025 — Researchers have analyzed ancient DNA from Borrelia recurrentis, a type of bacteria that causes relapsing fever, pinpointing when it evolved to spread through lice rather than ticks, and how it ...
May 22, 2025 — Scientists have analyzed ancient DNA and compared more than 400 fossils from 17 natural history museums to figure out how and why extinct sloths got ...
May 22, 2025 — Earth's largest gold reserves are not kept inside Fort Knox, the United States Bullion Depository. In fact, they are hidden much deeper in the ground than one would expect. More than 99.999% of ...
May 22, 2025 — New research examining 11,700 years of bowhead whale persistence throughout the Arctic projects that sea ice loss due to climate change will cause their habitat to severely contract by up to 75 per ...
May 21, 2025 — Analysis has shown a boulder weighing almost 1,200 tons in Tonga is one of the largest known wave-transported rocks in the world, providing new insights into the Pacific region's history and risk of ...