Study 40 Flashcards on the Largest Animals Ever: From the Blue Whale to Titanoboa
Deck QG2975 decoded: 40 cards on the biggest animals alive and extinct, the four rank-based cards to rewrite, and the crocodile contradiction to fix.
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Study guide for deck IF1769: 136 flashcards on the Guinness World Records story, from the 1951 pub argument to the 72nd edition, stars and banned categories.
Deck QG2975 — World Records: Nature & Animals promises nature records. The 40 cards are narrower and more useful than that: it is a size deck. Every card asks largest, heaviest, longest or tallest — nothing on the smallest, the fastest or the longest-lived, and nothing on plants, mountains or weather. Study it as "the biggest animals that ever existed", half living species and half extinct giants, and it is one of the cleanest trivia decks in the library.
Study this deck: World Records: Nature & Animals
1 / 10What is the largest animal currently alive?
Tap the card for the answer · swipe right if you knew it, left if not
Eight cards, verbatim
| Front | Back |
|---|---|
| What is the largest animal currently alive? | The blue whale — max recorded 190 tonnes at 27.6 m (91 ft) |
| What is the longest non-colonial animal? | The lion's mane jellyfish (120 ft / 36.6 m) |
| What is the largest living reptile? | The saltwater crocodile — males typically 3.9–5.5 m |
| What is the largest living bird? | The common ostrich — 2.8 m tall, over 156 kg |
| What is the estimated size of Patagotitan? | 37–40 m long, 20 m tall, 69–77 tonnes |
| What was the largest snake to have ever lived? | Titanoboa — 12.8–14.3 m, 730–1,135 kg |
| What was the largest extinct land mammal? | Paraceratherium orgosensis — 4.8 m tall, about 17 tonnes |
| What is the largest sea turtle? | The leatherback — average 364 kg, max 932 kg |
The full roll call
Living: blue whale, African bush elephant, Asian elephant, hippopotamus, giraffe, saltwater crocodile, Nile crocodile, Komodo dragon, common ostrich, Somali ostrich, southern cassowary, great bustard, emperor penguin, whale shark, giant sunfish, South China giant salamander, goliath frog, cane toad, leatherback sea turtle, Aldabra giant tortoise, lion's mane jellyfish. Extinct: Megalodon, Titanoboa, Paraceratherium, Ichthyotitan severnensis, Argentavis magnificens, the elephant birds of Madagascar (Vorombe), the giant moa, Lisowicia bojani, Sauropoda, Giraffatitan, Diplodocus, Patagotitan, Tyrannosaurus rex "Sue", Spinosaurus aegyptiacus. Named specimens: Lolong the crocodile, the 1974 Angola elephant.
Two fixes that change how it reviews
Four cards are unanswerable as written. They ask things like "What is the heaviest land mammal to reach rank #6?" or "the heaviest living bird species ranking #2" — ranks lifted from a source list the deck never shows you. You cannot know that the hippo is #6 without seeing #3, #4 and #5, which are missing. Rewrite these fronts as comparisons: "Which is heavier, a hippo or a giraffe?" (hippo, 1.8 t against 1 t) and "Which ostrich is heavier, common or Somali?" (common, 156 kg against 90 kg). Same facts, answerable card.
Two crocodile cards look like a contradiction. One says the largest confirmed saltwater crocodile was 6.32 m; another says Lolong, "the largest crocodile specimen ever named", was 6.17 m. Both are right — Lolong holds the record for a crocodile measured alive in captivity, the 6.32 m figure comes from a dead specimen. Add that one clause to the back or you will keep failing whichever card you drew second.
Two numbers deserve a pencil mark: the jellyfish's 36.6 m rests on one stranded specimen measured in 1870, and Megalodon's 24.3 m upper bound is an older estimate — recent work clusters nearer 15–20 m. Keep both cards, add "disputed" to the back.
How to study it
Sort by clade rather than card order — mammals, reptiles, birds, fish, amphibians, then the extinct block. Forty cards is one sitting, and the numbers stick worst, so drill orders of magnitude instead of decimals: blue whale 190 t, largest elephant 12 t, Paraceratherium 17 t, Patagotitan 77 t, T. rex 9.5 t. Anchor those five and the rest slots between them.
More records from the same shelf: the history of Guinness World Records.
Deck QG2975 — World Records: Nature & Animals is in the library on Flip It — search the code once you are logged in.
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