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Cover: The Adelaide rosella (Platycercus elegans adelaidae) is part of a species complex that has highly variable plumage colour, from deep crimson to pale yellow. Theory suggests colour vision co-evolves with plumage coloration and consequently P. elegans would be an ideal candidate for such within-species differences in colour vision, not found hitherto in birds. In preparation for such a test, Knott et al. (pp. 4454−4461) measured retinal photoreceptor spectral sensitivity and sequenced the visual opsin genes from P. e. adelaidae and found some opsins possessed novel extensions, or showed unusual splicing events, not previously observed in any vertebrate opsin. Photo credit: Raoul Ribot.Close Modal - PDF Icon PDF LinkTable of contents
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RESEARCH ARTICLE
Exclusive localization of carbonic anhydrase in bacteriocytes of the deep-sea clam Calyptogena okutanii with thioautotrophic symbiotic bacteria
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In the field: an interview with Sönke Johnsen
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Sönke Johnsen is a Professor at Duke University, USA, investigating visual ecology and he talks about his experiences of collecting transparent animals while blue water diving and in a submersible, as well as outrunning Hurricane Katrina.
Call for new preLighters
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preLights is the preprint highlighting community supported by The Company of Biologists. At the heart of preLights are our preLighters: early-career researchers who select and write about interesting new preprints for the research community. We are currently looking for new preLighters to join our team. Find out more and apply here.
Graham Scott in conversation with Big Biology
Graham Scott talks to Big Biology about the oxygen cascade in mice living on mountaintops, extreme environments for such small organisms. In this JEB-sponsored episode, they discuss the concept of symmorphosis and the evolution of the oxygen cascade.
Cleaner fish are potential super-spreaders
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Bluestreak cleaner wrasse spend their days pecking parasites off the skins of other fish, but now Pauline Narvaez & co have found that they may also be inadvertent super-spreaders. Parasitic flatworms can hitch a ride on the cleaners to reach their next host.
Hearing without a tympanic ear
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In their Review, Grace Capshaw, Jakob Christensen-Dalsgaard and Catherine Carr explore the mechanisms of hearing in extant atympanate vertebrates and the implications for the early evolution of tympanate hearing.
