It's about two times as heavy as The Heart of a Blue Whale
In other words, 420 kilograms is 2.1 times the weight of The Heart of a Blue Whale, and the weight of The Heart of a Blue Whale is 0.48 times that amount.(Balaenoptera musculus) (adult)
(for a 2014 specimen)
The heart of a blue whale weighs about 200 kilograms. These hearts pump an estimated 7,100 L (1,875 gal) of blood through the whale's massive body.
It's about two-and-a-half times as heavy as a Reindeer
In other words, 420 kilograms is 2.54 times the weight of a Reindeer, and the weight of a Reindeer is 0.394 times that amount.(for Rangifer tarandus granti, adult, bull) (a.k.a. Caribou) ()Rangifer tarandus)
An adult, male reindeer weighs between 159 and 182 kg. Reindeer undertake a lengthy annual migration, with some herds traveling up to 5,000 km.
To all those observing, Merry Christmas from the Measure of Things.
It's about three times as heavy as a Panda Bear
In other words, 420 kilograms is 2.8 times the weight of a Panda Bear, and the weight of a Panda Bear is 0.36 times that amount.(a.k.a. Giant Panda, Ailuropoda melanoleuca)(Adult, male)
An adult, male Giant Panda weighs up to 150 kg. Despite having the digestive system of a carnivore, the panda eats only bamboo and must eat up to 6.4 kg of it per day to compensate for the limited energy the plant provides.
It's about one-fourth as heavy as a Car
It's about one-fifth as heavy as a Giraffe
In other words, 420 kilograms is 0.218 times the weight of a Giraffe, and the weight of a Giraffe is 4.59 times that amount.(Giraffa camelopardalis reticulata) (adult, male, maximum of range)
An adult, male giraffe can weigh up to 1,930 kg. 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 five times as heavy as a Kangaroo
In other words, 420 kilograms is 4.9 times the weight of a Kangaroo, and the weight of a Kangaroo is 0.2 times that amount.(for red kangaroo, Macropus rufus) (adult, male)
An adult, male red kangaroo weighs up to 85 kg. Fantastic jumpers, red kangaroos can leap horizontally 9 m (30 ft) and vertically 3 m (9 ft) in a single bound.
It's about one-fifth as heavy as a Rhinoceros
In other words, 420 kilograms is 0.2 times the weight of a Rhinoceros, and the weight of a Rhinoceros is 5 times that amount.(for Black rhinoceros, Diceros bicornis) (Adult, male)
An adult black rhinoceros weighs between 1,400 and 2,800 kg. Rhinoceros are extremely aggressive — nearly one of every two males will die as a result of fighting with other rhinoceros.