Cover: Landmarks have been speculated to guide marine mammal orientation/navigation such as when reorienting at the water surface. In particular, landmarks could be used for goal localization, especially in coastal areas. Maaß et al. (jeb244544) show that while harbor seals (pictured here at the Marine Science Center, University of Rostock, Germany) spontaneously use vector information to localize their goal with respect to landmarks, one harbor seal was able to use geometrical relationships between landmarks for goal localization. Using geometrical relationships is beneficial when orienting with respect to landmarks from a distance or from unknown places. Photo credit: Frederike Hanke.
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The contraction–expansion behaviour in the demosponge Tethya wilhelma is light controlled and follows a diurnal rhythm
Summary: A diurnal pattern regulated by light is demonstrated in the contraction–expansion behaviour of the demosponge Tethya wilhelma even though sponges lack both nerves and opsins.
Plasticity in Na+/K+-ATPase thermal kinetics drives variation in the temperature of cold-induced neural shutdown of adult Drosophila melanogaster
Highlighted Article: Cold causes insects to lose central nervous system function and enter a coma. Plasticity in the coma-inducing temperature is associated with adaptive changes to Na+/K+-ATPase thermal kinetics in the brain of Drosophila melanogaster.
Prior parental experience attenuates hormonal stress responses and alters hippocampal glucocorticoid receptors in biparental rock doves
Summary: Experienced rock dove parents show lower corticosterone and higher prolactin levels after an acute stressor than birds without parental experience. Increased hippocampal glucocorticoid receptor expression may mediate this effect.
Pit viper thermography: the pit organ used by crotaline snakes to detect thermal contrast has poor spatial resolution
Highlighted Article: Thermal imaging by rattlesnake facial pits has poor resolution compared with thermographic cameras; consequently, patterned thermal backgrounds in natural environments may present a challenge for target detection.
The acute phase response in bats (Carollia perspicillata) varies with time and dose of the immune challenge
Summary: The physiological and behavioral responses of the acute phase response in bats is dependent on the dose and/or period (rest or active) in which the immunogenic substance is administered.
Kinematic and hydrodynamic analyses of turning manoeuvres in penguins: body banking and wing upstroke generate centripetal force
Highlighted Article: Kinematic and hydrodynamic analyses of penguins during horizontal turning show that penguins generate a centripetal force by means of body banking and contralateral differences in their wing motion.
Visual signals in the wing display of a tephritid fly deter jumping spider attacks
Highlighted Article: Tephritid flies perform a wing waving display that deters jumping spider attacks. Jumping spiders track flies less effectively during wing display because of fluctuations in colour contrasts arising from the wing movements.
Peptidergic modulation of a multi-functional central pattern generator in the pulmonate snail
Summary: A GnRH/CRZ-related peptide, associated with reproduction in many vertebrates and invertebrates, modulates the oral central pattern generator in the pulmonate snail towards a rasping rhythm accompanying egg-laying behavior.
Ants prefer the option they are trained to first
Summary: Ants preferentially choose odours they encounter first in a serial learning task.
Metabolic remodeling caused by heat hardening in the Mediterranean mussel Mytilus galloprovincialis
Summary: Heat stress in mussels results in multiple metabolic pathway shifts, largely mitigated in heat-hardened mussels, which possess an advantageous strategy for rapid gain and slow loss of heat tolerance.
A harbour seal (Phoca vitulina) can learn geometrical relationships between landmarks
Summary: A harbour seal can localise a goal in respect to landmarks using geometrical relationships, which is beneficial when approaching landmarks from a distance or from unfamiliar positions.
The Forest of Biologists
We are excited to announce the launch of The Forest of Biologists, a new biodiversity initiative created with support from the Woodland Trust, aiming to counteract nature loss and safeguard some of the most critically endangered ecosystems for future generations. Do take a look around our virtual forest. For every Research Article and Review/Commentary article that is published in JEB, a native tree is planted in a forest in the UK.
Celebrating 100 years of discovery
We are proud to be celebrating 100 years of discovery in Journal of Experimental Biology. Visit our centenary webpage to find out more about how we are marking this historic milestone.
Looking back on the first issue of JEB
Journal of Experimental Biology launched in 1923 as The British Journal of Experimental Biology. As we celebrate our centenary, we look back at that first issue and the zoologists publishing their work in the new journal.
In our new Conversation series JEB@100, JEB Editor-in-Chief Craig Franklin talks about the big outstanding questions in the field of physiological plasticity and why he thinks a sense of community is key to the journal's success. Find out more here.
Deer mice overheat and struggle to run in high temperatures
The impacts of warming temperatures associated with climate change on performance are poorly understood in most mammals. Matthew Eizenga and colleagues examined the thermal performance curve of endurance running capacity at high temperatures in the deer mouse (Peromyscus maniculatus).
Propose new workshop for 2025
Do you have an idea for a Workshop? We are now accepting proposals for our 2025 Biologists Workshops programme. As the scientific organiser, your involvement will be focused on the science. We'll take care of all the logistics. In 2025 we'll continue our efforts to diversify our Workshop programme and will be reserving one of our Workshops for an application from a Global South (GS) country to host an event overseas.