A new stegosaur (Dinosauria: Ornithischia) from the Middle Jurassic of Gansu Province, China.

Stegosaurs are a minor but iconic clade of ornithischian dinosaurs, yet due to a poor fossil record, their early evolution is poorly understood. Here, we describe a new stegosaur, Baiyinosaurus baojiensis, gen. et sp.

New Middle to ?Late Jurassic dinosaur tracksites in the Central High Atlas Mountains, Morocco.

Besides bones, fossil tracks and trackways are important sources of knowledge about dinosaur palaeobiology. Here, we report three new tracksites from two different synclines in the Imilchil area, Central High Atlas, Morocco. The tracks and trackways are preserved in fluvial deposits in different levels of the Isli Formation (Early Bathonian-?Upper Jurassic), and contain impressions made by sauropods, theropods and ornithopods, as well as tracks that might represent bird-like non-avian theropod dinosaurs.

"This has changed me to be a better mum": A qualitative study exploring how the Australian Nurse-Family Partnership Program contributes to the development of First Nations women's self-efficacy.

Background: The Australian Nurse-Family Partnership Program is based on the Nurse-Family Partnership program from the United States, which was designed to support first-time mothers experiencing social and economic disadvantage from early in pregnancy until their child's second birthday. International trials have demonstrated this program measurably improves family environment, maternal competencies, and child development. The Australian program has been tailored for mothers having a First Nations baby.

Convergent evolution of quadrupedality in ornithischian dinosaurs was achieved through disparate forelimb muscle mechanics.

The secondary evolution of quadrupedality from bipedal ancestry is a rare evolutionary transition in tetrapods yet occurred convergently at least three times within ornithischian dinosaurs. Despite convergently evolving quadrupedal gait, ornithischians exhibited variable anatomy, particularly in the forelimbs, which underwent a major functional change from assisting in foraging and feeding in bipeds to becoming principal weight-bearing components of the locomotor system in quadrupeds. Here, we use three-dimensional multi-body dynamics models to demonstrate quantitatively that different quadrupedal ornithischian clades evolved distinct forelimb musculature, particularly around the shoulder.