Long ton, also known as the imperial ton or weight ton, is the name for the unit called the  ton  in the avoirdupois or Imperial system of measurements standardised in the thirteenth century that is used in the United Kingdom and several other Commonwealth countries alongside the French metrication invented in 1799.
Animals of the bear family (including seven existing species of bears and one species of giant panda) usually have very low cub to mother weight ratio. This ratio of giant pandas is at the lowest 1:1,000 to 1:1,500. The newborn's weight only about 150g (0.33 pounds), which is approximately one thousandth of their mothers' weight. One month after birth, they will weigh 2kg (4.4 pounds), then reach 5-6kg two months later.
Snuggle up baby, you've forgotten your coat: Adorable photo shows newborn panda being cared for by his mother at Chinese breeding base. 1  The unnamed panda cub was born at the Chengdu base earlier today weighing just 145 grams. 2  A live stream of the birth by the Chengdu Research Base of Giant Panda Breeding had around 620,000 views.