Go south. Those at the equator weigh less than other places because the Earth's shape at that point puts them further from its centre of gravity, and it is moving faster through space; the extra centripetal force slightly counteracts that of gravity.
south
South
Koalas in the northern parts of Australia are smaller than those in the south. Males grow to 74 cm and weigh up to 9 kg, while females grow to 72 cm and weigh 7.25 kg.
The weight of the avarage northern quoll is 900g which is 2lbs
The people living in North America could weigh thousands of thousands of tonnes. The land form could weigh much more but there is no way to weigh an entire continent.
Northern Cardinals weigh about 45 grams.
The northern pike can weigh up to forty pounds, usually around ten pounds.
mass
The red tailed hawk (Buteo Jamaicensis) is a large common raptor found throughout North America. They range from 19-26 inches in length with a wingspan of 45-52 inches. It breeds throughout North America from western Alaska to northern Canada and as far south as Panama. They typically weigh from 690-1600 grams. Females are 25% larger than males. One of the most common Buteos in North America. They have a brick red tail and a brown back.
Northern koalas weigh up to 19.8 pounds (9kg) for males while Southern koalas weigh up to 33 pounds, or 15 kg.
Centripetal Acceleration is the scientific reason for why someone would weigh less while at the North or South Poles. However, there is only a slight weight difference.
There's no species known as "South African tigers". And tigers are not native to South Africa. Any tiger living in South Africa would be in a zoo, private collection or similar, and would weigh according to specie, gender, age, Health etc.