The Museum houses three diplodocid sauropod fossils, which were among the largest and heaviest land animals to walk on this earth. Over 80% complete,  two of these skeletons come with skulls—a rarity for sauropod fossils. Discovered between 2007 and 2010 in a small town of Ten Sleep, United States, they are believed to be part of a herd or even a family.

In July 2015, a 10.6-metre long female sperm whale (Physeter macrocephalus) was discovered dead off Jurong Island, marking the first record of a sperm whale in Singapore. The Museum team swiftly salvaged and studied the specimen, which is now exhibited in the Mammal Zone of the Museum.

‘Chengal pasir’ or Hopea sangal is a rare dipterocarp tree believed to be the origin of Changi’s name. Thought to be locally extinct, the lone specimen was discovered in 2002, but illegally felled the same year.