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A new mathematical equation describes bird eggs of all shapes

A new mathematical equation describes bird eggs of all shapes
sciencenews.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from sciencenews.org Daily Mail and Mail on Sunday newspapers.

Valeriy narushinMark hauberDarren griffinMichael romanovUniversity of kentUniversity of illinois at urbana champaignNew york academy

Cuckoos Start Bodybuilding Inside the Egg

Cuckoos Start Bodybuilding Inside the Egg
theatlantic.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from theatlantic.com Daily Mail and Mail on Sunday newspapers.

United statesUnited kingdomUniversity of illinoisNiamh nowlanClaire spottiswoodeStephanie mcclellandMark hauberIliana medina guzmanFacundo fernandez duqueUniversity of cambridgeUniversity of cape townRoyal holloway university of londonUniversity of melbourneUniversity college dublinUniversity of illinois at urbana champaignRoyal holloway university

Yellow warblers remember warning calls 1 day later, suggesting long-term memory

Yellow warblers remember warning calls 1 day later, suggesting long-term memory
science.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from science.org Daily Mail and Mail on Sunday newspapers.

United statesMark hauberShelby lawsonDerick greeneInstitute of advancedUniversity of illinoisUniversity of montanaAcross north americaAdvanced studiesBiology letters

Referential alarm calling elicits future vigilance brood parasite hosts

Yellow warblers are hosts to brood parasitic brown-headed cowbirds, which rely on other species to raise their offspring. Warblers use referential "seet" calls to warn female warblers specifically of the brood parasitic brown-headed cowbirds that may try to lay eggs in their nests.

Mark hauberShelby lawsonCarlr woese institute for genomic biologyUniversity of illinois urbana champaignIllinois urbana champaignGenomic biology

Birds eye size offers clues to coevolutionary arms race between brood parasites, hosts

The common cuckoo lays its eggs in the nests of other bird species, burdening these hosts with the task of raising its young. Photo by Olda Mikulica

Pookie fugglesteinStanley ritlandMark hauberIan auspreyUniversity of illinoisUniversity of florida departmentUniversity of chicagoFlorida museum of natural historyUniversity of illinois urbana champaignIllinois urbana champaignFlorida museum