Meet the impressive record-breaking species of the animal kingdom, from the the fastest shark, to the hairiest mammal or the loudest animal.

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Anna Wenner A former pick, the Beyond XP5000 Plastic-Backed Adult Brief, has ...

Adult stem cells are cells in the adult that can both self-renew by dividing and give rise to more specialised cell types present in the tissue in which they reside. They serve to maintain and repair ...