It's about 1,000 times as heavy as a Blue Whale
In other words, 259,950,000 pounds is 1,130 times the weight of a Blue Whale, and the weight of a Blue Whale is 0.000885 times that amount.(Balaenoptera musculus)
Blue whales weigh between 230,000 pounds. The largest mammal to have ever lived, blue whales feed almost exclusively on krill — tiny invertebrates weighing about 0.0022 pounds each.
It's about 1,500 times as heavy as The Space Shuttle
In other words, the weight of The Space Shuttle is 0.00059 times 259,950,000 pounds.(for Endeavour, a.k.a. OV-105, a.k.a. Orbiter Vehicle-105) (empty weight, excluding main engines)
When empty, the space shuttle Endeavour weighs 160,000 pounds. The shuttle's spacious cargo bay carried the Chandra X-ray Observatory into orbit in 1999 — a payload that weighed 44,000 pounds.
It's about 10,000 times as heavy as an Anchor of a Cruise Ship
In other words, 259,950,000 pounds is 10,400 times the weight of an Anchor of a Cruise Ship, and the weight of an Anchor of a Cruise Ship is 0.00009620 times that amount.(for QE2 forward anchor, a.k.a. RMS Queen Elizabeth 2)
Each of the forward anchors of the RMS Queen Elizabeth 2 weighs 24,900 pounds. The anchor of the QE2 now sits in front of the Holyrood Church in Southampton, England, United Kingdom, along a pedestrian tourist route known as "the QE2 mile."
It's about 20,000 times as heavy as a Tyrannosaurus rex
In other words, 259,950,000 pounds is 18,000 times the weight of a Tyrannosaurus rex, and the weight of a Tyrannosaurus rex is 0.0000560 times that amount.(for FMNH PR2081, a.k.a. "Sue") (a.k.a. Tyrannosaurus, a.k.a. T-Rex) (estimated live weight)
The notable Tyrannosaurus specimen housed at the Field Museum of Natural History in Chicago, Illinois, "Sue," is estimated to have weighed about 14,000 pounds while alive. A renowned predator in popular culture, the teeth of tyrannosaurus rex were up to 33.02 cm (13 in) long.
It's about 20,000 times as heavy as an Elephant
In other words, 259,950,000 pounds is 19,000 times the weight of an Elephant, and the weight of an Elephant is 0.0000530 times that amount.(for African bush elephant, Loxodonta africana) (Adult, bull)
A bull African bush elephant weighs about 13,000 pounds. Among African elephants, both males and females have tusks (whereas female Asian elephants, Elephas maximus, do not have tusks) which can grow to 3 m (10 ft) and typically weigh about 8,800 pounds
It's about 30,000 times as heavy as a Hippopotamus
In other words, 259,950,000 pounds is 31,400 times the weight of a Hippopotamus, and the weight of a Hippopotamus is 0.00003180 times that amount.(Hippopotamus amphibius) (adult, male)
The average weight of an adult male hippopotamus ranges from 8,270 pounds. Appearances to the contrary, adult hippos cannot swim or float in water; they actually move by leaping and walking across lake bottoms at about 8 kph (5 mph).
It's about 45,000 times as heavy as The Tongue of a Blue Whale
In other words, the weight of The Tongue of a Blue Whale is 0.0000230 times 259,950,000 pounds.(Balaenoptera musculus) (adult)
The tongue of a Blue Whale can weigh up to 6,000 pounds. Despite their tremendous size, blue whales feed almost exclusively on tiny crustaceans called krill and cannot swallow anything much larger than a beach ball.