Enantiornithes are the most successful clade of Mesozoic birds. Here, we describe a new
enantiornithine bird, Cruralispennia multidonta gen. et sp. nov., from the Protopteryx-horizon …

The study was conducted to ascertain the effects of dietary chromium chloride (CrCl 3· 6H 2
O) supplementation on mineral interaction in blood serum, leg muscles and bones of …

Our understanding of the origins of life will be enhanced if models and their predictions are
clearly understood and explicitly articulated. Here we outline two distinct models that are …

We eat animals. We wear their skins. We do experiments on them. We put them in zoos. We
breed them to be pets. We regard them as nuisances that need to be managed. Maybe all …

La teoría de los sistemas de desarrollo (TSD) pretende realizar una síntesis conceptual que
vincule el desarrollo ontogenético con la evolución. Sus antecedentes pueden ser …

Major transformations in the locomotor system of archosaurs (a major clade of reptiles
including birds, crocodiles, dinosaurs, and pterosaurs) were accompanied by significant …

The idea that birds are maniraptoran theropod dinosaurs is now considered an evolutionary
consensus. An “open”(ie, completely or substantially perforate) acetabulum is considered an …

Background The naturally occurring chicken mutant talpid 2 (ta 2), best known for its limb
and craniofacial defects, has long served as a valuable tool for developmental biologists …

The adult ankle of early reptiles had five distal tarsal (dt) bones, but in Dinosauria, these
were reduced to only two: dt3 and dt4, articulated to metatarsals (mt) mt3 and mt4. Birds …

In this chapter, we summarise the contribution of research in birds to the field of epigenetics
and development, both from the Waddingtonian and molecular perspectives. We compiled …