76 Circadian rhythms in Mexican blind cavefish Astyanax mexicanus in the lab and in the field.
http://www.nature.com/ncomms/2013/131114/ncomms3769/full/ncomms3769.html
75 Sperm competition drives the evolution of suicidal reproduction in mammals.
http://www.pnas.org/content/110/44/17910.abstract
74 Grasshopper mice use the scorpion’s strength against it—instead of inducing pain, scorpion venom blocks pain.
http://www.sciencemag.org/content/342/6157/441.abstract
73 The global spread of a fungal disease of frogs may be explained by its ability to inhibit immune clearance.
http://www.sciencemag.org/content/342/6156/366.abstract
72 First evidence of a 200-day non-stop flight in a bird.
http://www.nature.com/ncomms/2013/131008/ncomms3554/full/ncomms3554.html
71 Repeated targeting of the same hosts by a brood parasite compromises host egg rejection.
http://www.nature.com/ncomms/2013/130924/ncomms3475/full/ncomms3475.html
70 Unmanned Aerial Survey of Elephants.
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0054700
69 How minute sooglossid frogs hear without a middle ear.
http://www.pnas.org/content/110/38/15360.abstract
68 Social amoeba farmers carry defensive symbionts to protect and privatize their crops.
http://www.nature.com/ncomms/2013/130913/ncomms3385/full/ncomms3385.html
67 Wolf Howling Is Mediated by Relationship Quality Rather Than Underlying Emotional Stress.
http://www.cell.com/current-biology/abstract/S0960-9822(13)00823-3
66 Wild Orangutan Males Plan and Communicate Their Travel Direction One Day in Advance.
http://www.plosone.org/article/info:doi/10.1371/journal.pone.0074896
65 Whooping cranes learn their annual migration routes from their neighbors.
http://www.sciencemag.org/content/341/6149/999.abstract
64 Reciprocity explains food sharing in humans and other primates independent of kin selection and tolerated scrounging: a phylogenetic meta-analysis.
http://rspb.royalsocietypublishing.org/content/280/1768/20131615.abstract
63 Environmental levels of oestrogenic and antiandrogenic compounds feminize digit ratios in male rats and their unexposed male progeny.
http://rspb.royalsocietypublishing.org/content/280/1768/20131532.abstract
62 Male infanticide leads to social monogamy in primates.
http://www.pnas.org/content/110/33/13328.abstract
61 Bottlenose dolphins can use learned vocal labels to address each other.
http://www.pnas.org/content/110/32/13216.abstract
60 Context-dependent hierarchies in pigeons.
http://www.pnas.org/content/110/32/13049.abstract
59 The patterns of colors in feathers are produced via temporal and spatial regulation of melanocyte stem cells.
http://www.sciencemag.org/content/340/6139/1442.abstract
58 Schooling Fish Under Attack Are Not All Equal: Some Lead, Others Follow.
http://www.plosone.org/article/info:doi/10.1371/journal.pone.0065784
57 Loggerhead Turtles (Caretta caretta) Use Vision to Forage on Gelatinous Prey in Mid-Water.
http://www.plosone.org/article/info:doi/10.1371/journal.pone.0066043
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