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In low-latitude North China, riparian ecosystems began to recover 2–3 million years after the end-Permian mass extinction.

wtf genes, a poison-antidote meiotic driver, underwent recurrent and intricate recombination, which likely generates new meiotic drivers.

In Neotropical birds, eggshells show that water vapor conductance declines with elevation, but structural responses vary across species, suggesting no single underlying mechanism and highlighting the need to further evaluate eggshell traits as determinants of elevational limits.

Allocating space, materials and energy to an eye's optics and photoreceptor array is a major factor in eye design that explains obvious differences between simple eyes and compound eyes.

Deep learning applied to B cell phylogenies reveals a simple, measurable curve relating receptor affinity to evolutionary fitness in germinal centers.