Contrary to popular belief, the has very limited influence on biology. Here is a nice counterexample. The growth rate of a reef species is affected by lunar cycles, possibly due to alteration of diel vertical migrations of its preys.
📄 Shima et al (2021) Lunar rhythms in growth of larval fish. Proceedings of the Royal Society B: Biological Sciences 288:20202609 dx.doi.org/10.1098/rspb.2020.2

Ok, it's on twitter, but I am looking forward to reading some talks in this online scientific on animal behaviour.
🔗 animbehav2021.org/

in : mice share emotions of their partners by observing them experiencing fear or relief.
📄 Smith et al. (2021) Anterior cingulate inputs to nucleus accumbens control the social transfer of pain and analgesia. Science 371:153–159 dx.doi.org/10.1126/science.abe

Nice experimental design using artifact to study mating preference in .
📄 Romano & Stefanini (2021) Bio-robotic cues show how the Trinidadian guppy male recognises the morphological features of receptive females. Behavioural Processes 182:104283 dx.doi.org/10.1016/j.beproc.20

Tragedy of the commons and root proliferation in response to local competition: game theory in plant.
📄 Cabal et al. (2020) The exploitative segregation of plant roots. Science 370:1197–1199 dx.doi.org/10.1126/science.aba

and origami-like structure: beetles survive in-flight wing collision by collapsible wings
📄 Phan & Park (2020) Mechanisms of collision recovery in flying beetles and flapping-wing robots. Science 370:1214–1219 dx.doi.org/10.1126/science.abd

RT @RonySarker71@twitter.com

Given one square leaning on another, what is the ratio of the orange area and pink area?

🐦🔗: twitter.com/RonySarker71/statu

Inclusive practices: still a long way to fight gender or racial bias in science textbooks but alternative representations exist.
📄 Simpson et al (2021) Teaching between the lines: representation in science textbooks. Trends in Ecology and Evolution 36:4–8 dx.doi.org/10.1016/j.tree.2020

How to appear bigger than you are? Male tree crickets use home-made baffle as sound-amplifier when communicating with females.
📄 Deb et al (2020) Baffling: a condition-dependent alternative mate attraction strategy using self-made tools in tree crickets. Proceedings of the Royal Society B: Biological Sciences 287:20202229 dx.doi.org/10.1098/rspb.2020.2

Know your enemy: snapping assesses recent victory history of their opponents before engaging in a fight against them.
📄 Dinh et al (2020) Winner effects and switching assessment strategies facilitate fast and frugal decisions in territorial contests. Animal Behaviour 170:189–205 dx.doi.org/10.1016/j.anbehav.2

Unusual case of acoustic batesian in spider species which mimics stridulation against predator.
📄 Pekár et al (2020) Spiders mimic the acoustic signalling of mutillid wasps to avoid predation: startle signalling or Batesian mimicry? Animal Behaviour 170:157–166 dx.doi.org/10.1016/j.anbehav.2

Evidence of in a tiny parasitoid , half millimetre long. Congratulation to Silene for this nice study.
📄 Lartigue et al (2020) Consistent variations in personality traits and their potential for genetic improvement of biocontrol agents: Trichogramma evanescens as a case study. PCI Ecology dx.doi.org/10.1101/2020.08.21.

Very rare case of internal in species, a taxon usually characterized by broadcast spawning and random fertilization in open water.
📄 Shipway et al (2020) Mate competition during pseudocopulation in shipworms. Biology Letters 16:20200626 dx.doi.org/10.1098/rsbl.2020.0

While spiders do not possess insect-like ears (tympanal membrane), a species is able to detect airborn acoustic stimulus and distinguishes prey from predator.
📄 Stafstrom et al (2020) Ogre-faced, net-casting spiders use auditory cues to detect airborne prey. Current Biology 30:5033-5039.e3 dx.doi.org/10.1016/j.cub.2020.

Fecal defence: while otherwise very careful about the colony cleanliness, some bees spread bird or mammal on their hive as a defense against predator wasps.
📄 Mattila et al. (2020) Honey bees (Apis cerana) use animal feces as a tool to defend colonies against group attack by giant hornets (Vespa soror). PLoS ONE 15:e0242668 dx.doi.org/10.1371/journal.pon

Grany cure in a species: russet sparrows incorporate fresh medical herb in their nest as anti-parasite treatment.
📄 Yang et al. (2020) Sparrows use a medicinal herb to defend against parasites and increase offspring condition. Current Biology 30:R1411–R1412 dx.doi.org/10.1016/j.cub.2020.

How will global change affect phenotypes? Ongoing debate about Gogler's rule and the evolution of thermal .
📄 Delhey et al. (2020) Why climate change should generally lead to lighter coloured animals. Current Biology 30:R1406–R1407 dx.doi.org/10.1016/j.cub.2020.

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