It's about as heavy as a Car.
It's about nine-tenths as heavy as a Giraffe.
In other words, 25,490,000 grains is 0.8560 times the weight of a Giraffe, and the weight of a Giraffe is 1.170 times that amount.(Giraffa camelopardalis reticulata) (adult, male, maximum of range)
An adult, male giraffe can weigh up to 29,800,000 grains. Reaching 5.5 m (18 ft) in height by adulthood, giraffe calves can grow as much as 3 cm (1 in) per day.
It's about four-fifths as heavy as a Rhinoceros.
In other words, 25,490,000 grains is 0.790 times the weight of a Rhinoceros, and the weight of a Rhinoceros is 1.30 times that amount.(for Black rhinoceros, Diceros bicornis) (Adult, male)
An adult black rhinoceros weighs between 32,000,000 grains. Rhinoceros are extremely aggressive — nearly one of every two males will die as a result of fighting with other rhinoceros.
It's about three-fifths as heavy as The Tongue of a Blue Whale.
In other words, 25,490,000 grains is 0.610 times the weight of The Tongue of a Blue Whale, and the weight of The Tongue of a Blue Whale is 1.60 times that amount.(Balaenoptera musculus) (adult)
The tongue of a Blue Whale can weigh up to 42,000,000 grains. Despite their tremendous size, blue whales feed almost exclusively on tiny crustaceans called krill and cannot swallow anything much larger than a beach ball.
It's about two-fifths as heavy as a Hippopotamus.
In other words, 25,490,000 grains is 0.440 times the weight of a Hippopotamus, and the weight of a Hippopotamus is 2.270 times that amount.(Hippopotamus amphibius) (adult, male)
The average weight of an adult male hippopotamus ranges from 57,900,000 grains. 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 two-and-a-half times as heavy as a Cow.
In other words, the weight of a Cow is 0.420 times 25,490,000 grains.(for Holstein, a.k.a. Holstein Friesian, a.k.a. Friesian, Bos primigenius) (adult, heifer)
A mature Holstein cow (the well-known black-and-white, spotted breed of cow) typically weighs 10,000,000 grains. President William Howard Taft (1909 - 1913) kept a Holstein cow named Pauline Wayne on the White House grounds — a gift from a Wisconsin senator and the source of the First Family's milk.
It's about three times as heavy as a Grizzly Bear.
In other words, 25,490,000 grains is 3.170 times the weight of a Grizzly Bear, and the weight of a Grizzly Bear is 0.3150 times that amount.(a.k.a. brown bear, a.k.a. silver bear, Ursus arctos horribilis) (Adult, male, coastal area population average)
An adult, male grizzly bear from a coastal area (where food is plentiful) can weigh up to 8,040,000 grains. In spite of their tremendous size, grizzly bears can run at speeds of up to 55 kph (34 mph).