doi.org/10.1002/jmor...
Xianren Shan, Bristol University, and colleagues studied the emblematic fossil Moythomasia durgaringa with SEM & SRXTMCT. They suggest that cosmine as a concept is phylogenetically uninformative and that fossils thought to be stem-sarcopterygians need to be re-classified.

Schematic depiction of experiment conducted by Lammers et al with laboratory rats.

doi.org/10.1002/jmor.70119Digital
AR Lammers, Cleveland State University, et al. tested experimentally, if adding weight to limbs (an evolutionary characteristics of climbers) makes rats better climbers: No => rats are too set in their ways or evolution does much more than just adding weight 🙃

Histological sections of gonads in axolotl

doi.org/10.1002/jmor.70118Digital
Axolotls, retain larval characters as adults. J. L. Sánchez-Ortiz from National University of Mexico and colleagues studied maturation of axolotls and found that development of eggs and sperm occurs as early as 7 months of age with males developing before females.

@jourmorph.bsky.social
Flamingos use beaks to filter feed. Ardila & Carlos from Universidade do Rio Grande do Sul describe the skull of the Chilean Flamingo, with special focus on feeding structures. Mechanics indicates adaptations for rapid movements and muscles favoring speed & precision.

Thomas Stach @jourmorph.bsky.social
Journal of Morphology I Wiley Online Library
doi.org/10.1002/jmor... Object Identifier (DOI)
#morphology #morphologists