What are the different approaches being explored for male contraception?

Mar 14, 2011 ... 10 in Animal Behavior, they analyzed a coda made by sperm whales around the world. Called 5R, it's composed of five consecutive clicks, and ... The experimental unit was made of two insemination doses of 100 mL each, with 3×10(9) spermatozoids. Insulin used was NPH-human, added at the time of ... Somatic cells are the cells in the body other than sperm and egg cells (which are called germ cells). ... All organisms that are alive are made of one or more ... Feb 25, 2016 ... A team of Chinese researchers reports turning a dish of a certain type of mouse stem cell into spermlike cells, which then were used to fertilize eggs and ... Jan 28, 2025 ... sperm whale. You are dealing in ivory if you: buy, sell or hire out an ivory item – including trading or swapping it with something that has ... Dec 1, 2021 ... Scientists have made a plastic cup out of salmon sperm — yes, sperm ... DNA plastic mug created with biodegradable plastic derived from salmon ... PSA is an enzyme present in male semen that helps sperm motility. In addition, female ejaculate usually contains fructose, a form of sugar. Fructose is also ... Jan 10, 2017 ... The sperm is contained in a white fluid called seminal fluid that's released by the prostate glands and seminal vesicles. Semen is a combination of both this ... DNA is the hereditary material in humans and other organisms and consists of two long chains—DNA strands—that are coiled around each other, each made of ... Dog Sperm Transport box made of Neopor ... Transport box made of highly insulating Neopor (Minitübe) with 2 ice-packs, 1 syringe (10 ml), 1 syringe (5 ml), a ...