It’s pretty hard to find a fossil of something that’s completely squishy and tiny. Without bones or exoskeletons, there’s not a lot from many microorganisms that gets preserved. But a 200-million year ...

About 200 million years ago, a leech released a slimy mucous cocoon that unwittingly encased and trapped a bizarre animal with a springy tail, preserving it until researchers discovered the ...

Move over amber. When it comes to preserving soft-bodied animals through the ages, there’s a newcomer in town: fossilised leech “cocoons”. The cocoons are secreted by many leech and worm species ...

A 437-million-year-old fossil from a deposit in Wisconsin could be the oldest species of leech ever found. By Jack Tamisiea If you look around Waukesha County in Wisconsin today, it can be difficult ...

The frequent presence of leeches with a hidden lifestyle in the mantle cavity of freshwater mussels has been recorded since the second half of the 19th century. Yet this was, until now, regarded as an ...

A new report in the journal Nature unveils three of the first genomes from a vast, understudied swath of the animal kingdom that includes as many as one-quarter of ...

CAMDEN -- Look out, Indiana Jones. Dan Shain is redefining the term "summer action hero" with voyages to frozen glaciers and the steamy Amazon planned, all in the name of scientific research. Like the ...