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Biology Letters|May 3, 2013
Stranded dolphin stomach contents represent the free-ranging population's dietGlenn Dunshea, Nélio B Barros, Elizabeth J Berens McCabe, et al.
Biology Letters|April 12, 2013
Low fertility of wild hybrid male flycatchers despite recent divergenceMurielle Alund, Simone Immler, Amber M Rice, et al.
Biology Letters|February 15, 2013
Disposable penis and its replenishment in a simultaneous hermaphroditeAyami Sekizawa, Satoko Seki, Masakazu Tokuzato, et al.
Biology Letters|February 15, 2013
Bite force is limited by the force-length relationship of skeletal muscle in black carp, Mylopharyngodon piceusNicholas J Gidmark, Nicolai Konow, Eric Lopresti, et al.
Biology Letters|February 15, 2013
The impact of sex ratio and economic status on local birth ratesA Chipman, E Morrison
Biology Letters|February 22, 2013
The active metabolic rate predicts a male spider's proximity to females and expected fitnessMichael M Kasumovic, Frank Seebacher
Biology Letters|February 22, 2013
Chimpanzees' (Pan troglodytes) strategic helping in a collaborative taskAlicia P Melis, Michael Tomasello
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