Feeding turtles and tortoises right means mimicking their natural diet; the wrong foods, even common ones, can be harmful.

Calcium is a mineral that’s crucial for many bodily processes. Here are the four best calcium supplements, according to registered dietitians.

We show that raised concentrations of extracellular calcium ions shift the preferred mode of exocytosis to the kiss-and-run mechanism in a calcium-concentration-dependent manner.