This internal left-right asymmetry is believed to begin at the very early stage of development -- when a tiny embryo is divided into two parts during a process called gastrulation. This process ...

Most animals, including humans, have bilateral symmetry, which means our bodies are pretty symmetrical. At least on the ...

Most animals, including humans, have bilateral symmetry, which means our bodies are pretty symmetrical. At least on the outside.On the inside, things ...

We live in a golden age for space exploration. Scientists are gathering massive amounts of new information and scientific evidence at a record pace. Yet the age-old question remains unanswered: are w ...