The fossil leech compared with a modern leech. Double arrows indicate the large caudal sucker used for attachment, single arrows indicate body annulations. Credit: Andrew J Wendruff/Otterbein University and Takafumi Nakano/Kyoto University

Rare fossil reveals ancient leeches weren’t bloodsuckers

A commissioned artwork by Andrey Atuchin illustrates Eurhinosaurus mistelgauensis on a belemnite battleground. Credit: Andrey Atuchin. CC-BY 4.0

New ichthyosaur species with robust ribs discovered in Jurassic clay pit

A complete petrified skeleton of an ancestor of modern porpoises dating back more than 10 million years is unveiled at the Geological, Mining, and Metallurgical Institute (INGEMMET) in Lima on September 17, 2025.

12-million-year-old porpoise fossil found in Peru

Different views of the material studied. Credit: Review of Palaeobotany and Palynology (2025). DOI: 10.1016/j.revpalbo.2025.105401

A 296-million-year-old fossil unearthed in Brazil sheds light on ancient plant...

The 13 fossil teeth collected in the Ledi-Geraru Research Area from 2015–2018. The collections at LD 750 and LD 760 localities represent a newly-discovered species of Australopithecus. LD 302 and AS 100 represent early Homo already known from the LD 350 mandible discovered in 2013. Credit: Brian Villmoare: University of Nevada Las Vegas

Scientists uncover new fossils—and a new species of ancient human ancestor

Janjucetus dullardi calf and mother. Artwork by Ruairidh Duncan. Credit: Ruairidh Duncan / Museums Victoria

Shark-like ancient whale with slicing teeth discovered on Victoria’s Surf Coast

Dentition of Eocoileus gentryorum from the Gray Fossil Site compared to a sample of fossil and extant cervids. Credit: Palaeontologia Electronica (2025). DOI: 10.26879/1560

5-million-year-old deer fossils link modern wildlife to ancient North American forests

This illustration by Mauricio Alvarez depicts 'Yeutherium pressor,' a tiny mammal that lived in the time of the dinosaurs in what is now southern Chile.

Scientists find 74-million-year-old mammal fossil in Chile

Jacqueline Lungmus, an assistant professor of geosciences at the University of Oklahoma and UW undergraduate alum; Kenneth Angielczyk, curator of paleomammology at the Field Museum; and Brandon Peecook, associate professor of biological sciences at Idaho State University and a UW doctoral alum, excavate a fossilized dicynodont from the Permian of Zambia. Credit: Roger Smith/University of the Witwatersrand

Fresh fossil finds in Africa shed light on the era before...

Dominic Stratford of Stony Brook University and Tyler Faith collect a possible hominin tooth found in sediments cemented to the roof of a cave in South Africa’s Cango Valley. The fragile specimen will remain in South Africa and be CT scanned. Credit: Lauren Schroeder, University of Toronto Mississauga

South African caves filled with fossil clues to Pleistocene Epoch

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