Coping with captivity: takeoff speed and load-lifting capacity are unaffected by substantial changes in body condition for a passerine bird
Summary: Eurasian tree sparrows exposed to varying durations of captivity stress maintain relatively stable maximum flight performance despite experiencing dramatic changes in both internal milieu and external environment.
Editor's choice: Temporary paralysis of wing-skin-embedded muscles in bats significantly increases wing-membrane camber, reduces preferred flight speed and prevents very slow flight, highlighting their role in control, efficiency and expanding the flight envelope.
Summary: In ladybird beetles (Coccinella septempunctata), setae on the internal edge of elytra coupling store energy, functioning as springs, and thus play an essential role in rapid elytra deployment.
Patterns of single limb forces during terrestrial and arboreal locomotion in rosy-faced lovebirds (Psittaciformes: Agapornis roseicollis)
Summary: Bipedal walking in parrots (Agapornis roseicollis) is associated with the adoption of a sidling gait, decoupling the leading and trailing limb into distinct functional roles (exclusively braking and propulsive, respectively).
The influence of stochastic temperature fluctuations in shaping the physiological performance of the California mussel, Mytilus californianus
Highlighted Article: Mussels acclimated to an unpredictable thermal regime produce different physiological performance in terms of energy stores, metabolic capacity, and thermal performance in comparison to mussels acclimated to a predictable thermal regime.
Summary: Domestic canaries apply specific 3D movements of their upper and lower beaks during the various phases of seed processing; this includes extremely fast open–close frequencies during phases of seed positioning.
Summary: Decapod crustacean eggs are not completely isolated by their membranes, which may selectively transport ions to an intra-membrane space. Evidence of osmoregulation indicates an active role of membranes.
Dual spring force couples yield multifunctionality and ultrafast, precision rotation in tiny biomechanical systems
Highlighted Article: Trap-jaw ant strikes reveal how tiny elastic systems can rotate precisely at exceedingly high accelerations while retaining slow, multi-degrees of freedom movement.