Simon et al. compared the role of constraints and selection on function to align micro- and macroevolutionary patterns of hindlimb trait covariation in frogs. They inferred that species tracked jumping performance peaks mostly along lines of least resistance within-species. Read now ahead of print!

https://www.journals.uchicago.edu/doi/10.1086/735569
#evolution #macroevolution #species #performance #hindlimb #covariation

amputated legs after treatment with a chemical cocktail | New Scientist
https://www.newscientist.com/article/2306066-frogs-regrow-amputated-legs-after-treatment-with-a-chemical-cocktail/

#BioDome #silk_gel #Xenopus_laevis #frog #hindlimb #amputation #regrowth #regeneration