Income and capital breeding in males: energetic and physiological limitations on male mating strategies
Summary: Capital- and income-breeding strategies can be applied to males, but factors shaping these strategies are different from those found in females.
Summary: Fat reserves in birds accumulated prior to migration are optimised as a function of expected energy expenditure during migration, defined by an interplay between journey length and the energy efficiency of the flight apparatus (e.g. wing aspect ratio, flight type).
Determinants of optimal leg use strategy: horizontal to vertical transition in the parkour wall climb
Highlighted Article: The optimal transition from horizontal to vertical appears to be determined largely by a trade-off of positive and negative leg work that accomplishes the task with minimum overall work.
Summary: Characterization of the day and night transcriptome of the adult zebrafish retina reveals novel circadian transcripts.
Summary: Evidence suggests that cephalopods possess a sleep-like state that resembles behaviorally the vertebrate rapid eye movement sleep (REMS)-like state.
Summary: Comparing worker and queen bumblebees reveals how body size impacts flight energetics and muscle metabolism.
Measurement and modelling of primary sex ratios for species with temperature-dependent sex determination
Summary: A new model for estimating sex ratios from temperature traces for species with temperature-dependent sex determination.
Editors' Choice: A new way to test animal colour vision based on methods to determine whether humans are ‘colour blind’, and a demonstration of how this method works with triggerfish.
Summary: Thermoregulation plays a fundamental, up to now neglected, role in the relationship of endangered affiliated mussels and their fish hosts.
Summary: Like humans/other animals, insects also suffer age-related declines. Older insects are more susceptible to injuries and less able to repair them than younger counterparts.
Developmental carryover effects of ocean warming and acidification in corals from a potential climate refugium, the Gulf of Aqaba
Summary: Exposing mature scleractinian corals to predicted next-century temperature and pH did not significantly alter parent or offspring physiology or recruitment success in a recognized coral climate refugium.
Summary: By measuring butterflies' behavioural responses to moving images containing both polarization and intensity contrast, we infer the photoreceptors and early neural circuits involved in motion detection.
Deletion of a specific exon in the voltage-gated calcium channel gene cacophony disrupts locomotion in Drosophila larvae
Summary: The voltage-gated calcium channel gene cacophony encodes multiple alternatively spliced variants. CRISPR/Cas9 genomic editing precisely eliminated a single cacophony exon in Drosophila, leading to larval crawling defects.