Female Megalopta sweat bees must choose whether to remain as helpers in their mother’s nest or leave to reproduce independently.

31-Jul-2026

A minimal wake-vortex model explains how a bird following behind and to the side of another can reduce the mechanical power needed for flight by about 11 percent. The leading bird’s oscillating wake reduces the follower’s need to generate thrust, allowing it to flap through a much smaller vertical range. The work converts formation flight from a broad observation into a specific local interaction: position relative to one neighbour changes the energy required by the following agent.

31-Jul-2026

Kagoshima University researchers identified methyl benzoate as an airborne plant-defence signal whose release rises around dusk. Plants receiving the compound activate defence-related genes through NPR1, a central regulator of plant immunity, using a response pattern distinct from the better-known signal methyl salicylate. The finding adds a time-sensitive chemical channel to plant-to-plant communication: neighbouring plants can receive an environmental warning and prepare defensive responses before encountering the threat directly.

31-Jul-2026

Researchers selectively silenced neural circuits associated with the doublesex gene in older honeybee workers and caused them to resume queen-care duties normally performed by younger bees.

31-Jul-2026

A new agent-based model suggests that Andean condors can reduce the energetic cost of long-distance flight by using the movements of other birds as continuously updated social information. In patchy, unpredictable landscapes, observing where companions find rising air currents helps individuals choose more efficient soaring and gliding routes. The benefit emerges without central direction: each bird responds to locally available cues, and the group collectively becomes a distributed sensor for changing atmospheric conditions.

31-Jul-2026

To Which Quorum Should a Bacterium Listen? In the first article on microbial communication, we saw how bacteria release chemical signals that accumulate as a population grows. When a signal crosses a threshold, many cells change behaviour together, without a leader directing them.

30-Jul-2026

Researchers found that aphids transfer several of their own microRNAs, together with the regulatory protein Argonaute 1, into Buchnera bacteria living inside specialised host cells. The transferred molecules are predicted to target bacterial genes involved in the symbiosis, revealing a previously unknown channel through which an insect may coordinate gene activity with an obligate microbial partner.

27-Jul-2026

Greater Japanese horseshoe bats gradually converge on a shared echolocation frequency after unfamiliar individuals join a colony. Instead of separating their signals into individual channels, lower-frequency bats shift upward until colony members preserve a common clutter-free band in which echoes from fluttering prey remain detectable.

27-Jul-2026

Wood ants maintaining their nests can move sticks cooperatively even when there is no shared destination or leader directing the task. Experiments showed that an ant joining an already moving stick grips it more quickly and aligns itself more precisely than an ant approaching a stationary stick. Ants also remain engaged longer and make fewer grip changes when their efforts successfully reinforce the movement.

23-Jul-2026

Rosy barbs and tiger barbs have markedly different individual swimming patterns, yet form cohesive mixed-species schools by matching speed through local interactions. The tiger barbs’ slower swimming mode disappears, leaving the combined school dominated by a shared fast-moving state.

22-Jul-2026