Dramatic underwater photos capture the elusive Amazonian pink dolphins red-handed.

Though preg checking does cost upfront, the results allow ranchers to make decisions that can help them financially.

Shortly after fertilisation, the body starts producing a hormone called human chorionic gonadotrophin (HCG). The presence of this hormone in blood or urine is a pretty reliable indicator of pregnancy.

Results from the PATHFINDER 2 trial of Grail's blood test for multiple cancers have shown greater efficacy and a lower rate of false alarms than in an earlier trial of the technology. The Galleri ...