This primary bone is characterized by immature bone trabeculae which are aligned along the direction of traction exerted by the periodontal fibers. Secondary bone can be identified by its osteon-like ...

What is the primary election about? This primary election will fill former supervisor Nora Vargas’ vacant seat for San Diego County’s First Supervisorial District. The elected supervisor will ...

Fun, simple, curriculum-linked resources to inspire primary-aged children to get moving for mental health and wellbeing. These videos require no extra equipment and can be used flexibly during the ...

Paget Primary School is holding their 7th Annual Black History Museum event, with this year’s honorees including Allison Figureido, Antoine Richards, Chesley Trott, Clermont “Duke” Joell ...

Powered flight has evolved separately in three tetrapod clades: pterosaurs, birds (avian dinosaurs), and bats. To meet the challenges of powered flight, tetrapods acquired structural, mechanical, and ...