Sexual conflict paper, mainly spiders!
'unless females are extremely rare relative to males, and/or male survival prospects are very slim, the highest quality males would avoid extreme investment and rather set out to look for additional females to mate with'
What about male quality? A model to predict male investment in a single female:
doi.org/10.1093/jeb/...
Heifetz et al. 2026
Color patterns help crayfish species hide, but they also may use them to communicate! Across 393 species, this research shows how colour patterns like stripes, spots, and bands evolve in freshwater crayfishes:
doi.org/10.1093/jeb/...
Independent origin of sperm heteromorphism in the Drosophilidae:
Bhatt et al. 2026 @syracuseu.bsky.social
doi.org/10.1093/jeb/...
Cryptic sponge with bizarre, GC-rich mitogenome (missing cox2) found in a Haliclona–Plakortis symbiosis. Resembles H. plakophila, but genetic + morphological data reveal a new Haplosclerida lineage, highlighting hidden diversity 🧽🧬 @makhaki.bsky.social @dlavrov.bsky.social
doi.org/10.1093/jeb/...
New work from @islandbirdproject.bsky.social using 3D bird models from 12 species across 3 archipelagos & mainland sites, we show that colourful plumage can be risky but not on islands!
doi.org/10.1093/jeb/...
Individual-based model reveals sympatric allochronic divergence possible without ecological divergence. Male-male competition for females drives male activity timings towards an earlier activity timing niche:
doi.org/10.1093/jeb/...
@titouanbouinier.bsky.social @isyeb.mnhn.fr @cirbcdf.bsky.social
Abstract. Monogyny—where a male invests all his reproductive effort in a single female—is a rare and poorly understood mating system. It contradicts conven
doi.org
Abstract. Colour patterns are the spatial arrangements of contrasting colours on an organism’s body and can have several non-mutually exclusive functions,
Chromosomal rearrangements: tempo and mode of karyotype evolution in Scarabaeoidea
@seanchien.bsky.social & Heath Blackmon @tamu.bsky.social
doi.org/10.1093/jeb/...
Abstract. Sperm heteromorphism, the production multiple discrete sperm types (or “morphs”), occurs in diverse animal and plant taxa. This phenomenon repres
