The Feast of the Presentation of the Blessed Virgin Mary, celebrated annually on November 21st, commemorates the presentation of the Blessed Virgin as a child by her parents in the Temple in Jerusalem ...

Developmental biology is the field of biology that studies the processes by which multicellular organisms grow and develop, controlled by their genes. Knowledge of normal developmental processes can ...

Find answers to your big nature questions. Delve into stories about our research, scientists and the collections we care for. Uncover the history of life on Earth, from the smallest insects to the ...

The formation of a complex organism from a single cell is one of the most amazing wonders of biology. Embryonic development is characterized by a careful regulation of cellular behaviors such that ...

Objective To compare the risk of hospitalisation for conditions originating in the perinatal period between children conceived via assisted reproductive technology and those that are naturally ...