I never believed in love at first sight until I met my now-husband. I couldn't recognize him from his identical twin brother over the phone. We ended up having fraternal twins, and I got to experience ...

Twins occur in about one out of 90 human pregnancies in the US. As a rule, at conception, one sperm fertilizes a single egg to produce a zygote. Two thirds of twins are fraternal, with fertilization ...

Environmental factors significantly influence the development of allergic diseases, overshadowing genetic predisposition. Identical twins showed higher incidences of atopic dermatitis, rhinitis, and ...

Multiple births are rarely planned, but they are a reality! The splitting of a single zygote or fertilised egg causes ...