1. Read the green reference
Its stated size is your ruler. Check whether the purple animal asks for height, length or wingspan.
ANIMALS ONLY · FREE UNLIMITED PRACTICE
Size It Up Animals
A free animal size guessing game with 47 silhouettes. Resize the purple animal beside the green reference, then reveal its real height, length or wingspan.
Play animalsAnimal practiceFive comparisons · 500 points
Mix all 47 animals, from insects and birds to large mammals.
Finding your first animal comparison…
No daily limit No sign-up Free to play
HOW TO PLAY
Controls & scoring How to play Size It Up Animals
2. Resize the purple animal
Use the slider, drag handle or + and − buttons. Estimate how many reference measurements fit along the target’s marked dimension.
3. Lock in, learn, play again
Reveal the answer, your points and the source. Finish five comparisons for a score out of 500, then start another animal game.
MEET THE LIBRARY
All measurements & credits Small wings. Long bodies. Tall surprises.
These six examples are part of the 47-animal pool. The values are the game’s chosen references, rather than maximum sizes or exact sizes for every individual. Illustrations show each animal separately, not at a shared scale.
Giraffe
5 mStanding height
We use 5.0 m for a tall adult male. The source reports males reaching 5.5 m; height varies with age and sex.
San Diego Zoo Wildlife Alliance
African elephant
3.1 mShoulder height
We use a shoulder height of 3.1 m, the midpoint of the source’s 3.0–3.2 m male average range. The icon is illustrative.
San Diego Zoo Wildlife Alliance
Great white shark
5 mTotal length
We use a 5 m adult female. The museum gives female maturity at 4.5–5.0 m and estimated maximum length of 6.0–6.4 m. Our 4.5–6.4 m comparison bounds span those benchmarks; they are not a measured population interval.
Florida Museum of Natural History
Emperor penguin
1.15 mStanding height
The British Antarctic Survey describes emperors as standing around 115 cm tall. Individuals vary.
British Antarctic Survey
Monarch butterfly
10.5 cmWingspan
10.5 cm is the midpoint of the published 8.6–12.4 cm wingspan. This measures open wings, not body length.
University of Michigan: Animal Diversity Web
Worker honeybee
1.25 cmBody length
12.5 mm is the midpoint of the 10–15 mm adult worker range. Queens and drones are deliberately excluded.
University of Michigan: Animal Diversity WebAnimal size comparison: read the label first
A giraffe’s standing height reaches the top of its head. An elephant’s shoulder height stops lower. A shark uses total length, while a monarch butterfly uses open wingspan. All are distances, but they describe different parts of the animal.
Compare the marked dimensions rather than body bulk. Long tails, folded wings and bent legs can change the impression a silhouette gives. Our animal drawings are illustrative; the source note explains the measurement behind the answer.
Where the animal measurements come from
The library links to wildlife references including San Diego Zoo Wildlife Alliance, the University of Michigan’s Animal Diversity Web, Cornell Lab of Ornithology and NOAA Fisheries. Some game values are selected within a published range or calculated as its midpoint. The reveal identifies the example and its limits. You can check the measurement methods and artwork credits at any time.
Size It Up Animals questions
Can I play only animals in Size It Up?
Yes. Every reference and target on this page comes from our 47-animal library. Choose All animals or narrow the pool to Land animals, Birds, Water & coasts, or Small wildlife.
Is Size It Up Animals free and unlimited?
Yes. Play five rounds, see your score out of 500, then select Play again for another set. There is no daily attempt limit, timer, account or download. The library is finite, so animals and pairs can appear again.
Am I guessing animal height, length or weight?
You are guessing the marked linear measurement: standing or shoulder height, body or total length, or wingspan. Read both labels before resizing. Weight and volume are not scored, and an animal’s length can be compared with another animal’s height.
Are the animal sizes exact for every individual?
No. The game uses a stated representative size, sometimes a midpoint of a published range. Age, sex, breed and posture can change an animal’s size. Each reveal includes the measurement note and source for the example used.
Does animal practice change my Daily score?
No. This page is topic practice. Your Daily Classic record stays separate, and animal practice does not add to your daily streak.
Can I play on my phone?
Yes. Use the slider or plus and minus buttons to resize, then tap Lock in. On a keyboard, focus the slider and use the arrow keys. Fit view changes the view without changing your estimate.
KEEP YOUR PERSPECTIVE
Try another animal challenge
Practice a fixed five-pair set, or return to this page for another animal mix.