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A Fossilized Tree That Dr Seuss Might Have Dreamed Up

The toilet brushlike specimen from a Canadian quarry hints at the evolutionary experiments that occurred during a 15-million-year gap in the fossil record.

Colby collegeUnited statesPatricia genselRobert gastaldoUniversity of north carolina at chapel hillCurrent biologyLate paleozoic eraNorth carolinaChapel hillCurrent biology journalNew brunswick canadaYour feed scienceInternal truncator

The Sex-Obsessed Marsupials That Will Sleep When They re Dead

Scientists find that male antechinuses, rodent-like animals from Australia, will forgo sleep for sex during their breeding season, after which they die.

Otway national parkErika ziadVladyslav vyazovskiyJohn leskuGreat otway national parkTrobe universityUniversity of oxfordCurrent biologyAnimal behaviorCurrent biology journalYour feed scienceYour feed animals

Scaly Fossil Is the Oldest-Known Piece of Skin

The specimen came from a 289 million-year-old fossil deposit and might offer clues to how skin evolved.

United statesRichards spurRobert reiszBill mayUniversity of toronto mississaugaCurrent biologyCurrent biology journalYour feed scienceYour feed animals

Amber Fossils Suggest Male Mosquitoes Were Once Bloodsuckers

The preserved insects, from a cache of Lebanese resin, appear to be male but have mouth parts that are found only on modern female mosquitoes.

France generalDale greenwaltDany azarLebanese universitySmithsonian national museum of natural historyInstitute of geologyNational museum of natural historyCurrent biologyNanjing instituteNational museumNatural historySmithsonian national museumCurrent biology journalYour feed scienceYour feed animals

Exactly How Much Life is on Earth? - The New York Times

According to a new study, living cells outnumber stars in the universe, highlighting the deep, underrated link between geophysics and biology.

Mountain viewCaleb scharfMichael kippPeter crockfordJames lovelockPeter wardUniversity of washingtonAmes research centerDuke universityCarleton universityCurrent biologyCurrent biology dispatchesResearch centerGreat oxidation eventCambrian explosionBiology and biochemistry

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