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Featured article – Male killer whales unexpectedly hunt more than females
Photo credit: Candice K. Emmons under federal permits NMFS 781-1824 and 16163.
New recordings of salmon-eating killer whales reveal that males hunt more than females. Jennifer Tennessen and colleagues used multisensor bio-logging tags and tracked animals from small inflatable boats in all conditions to identify hunting behaviour from sound and movement patterns.
Editor's choice – Colour blindness test gets submerged
John Endler and team have come up with a new way to test animal colour vision based on methods to determine whether humans are ‘colour blind’, and they demonstrate how this method works with triggerfish.
Review - Polarisation signals: a new currency for communication?
Recent evidence shows animals use polarised light, as well as colour, to signal each other. Justin Marshall and team review this new area in animal vision and ecology.
The Company of Biologists provide grants to fund scientific meetings, workshops and conferences in the fields covered by our journals. Typically, meetings with fewer than 100 people may be granted up to £2,000, increasing up to £6,000 for about 400 people. The next deadline to apply is 25 March 2019.
preLights - Elaborate pupils in skates may help camouflage the eye
In preLights, Carola Yovanovich highlights a preprint by Sean Youn, Corey Okinaka and Lydia Mäthger that shows little skates can disguise their eyes by adjusting the degree of constriction of their pupils in response to the graininess of the substrate. It’s now a Research Article in JEB.