nature · 29 RECORDS · RATIO SCORING

Animal scales: 29 sourced records

AnAge build 15 · selected species · high/acceptable records. Values are shown in kg and frozen to the 2026-10-24 snapshot used by the game.

What this topic measures

AnAge is a comparative-biology database. Maximum longevity and typical lifespan are different measurements. The unit is kg. This topic uses ratio scoring: a value half the target and a value twice the target are equally far away, so think in multiplicative bands rather than fixed steps.

A record is a named row in the frozen catalog, not necessarily a unique entity. Some topics contain several records with the same value, and a name round accepts any record at the closest distance. The table below is the complete answer set for this topic; there is no hidden shortlist.

All 29 records

All 29 records in this frozen snapshot, sorted from highest to lowest value. Ties are shown in name order.
#RecordValueYear / releaseSourceNote
1House mouse0 kg—Source ↗high · captivity
2House sparrow0 kg—Source ↗acceptable · unknown
3Rat0.2 kg—Source ↗acceptable · captivity
4Common raven1 kg—Source ↗acceptable · captivity
5Bald eagle3.2 kg—Source ↗acceptable · captivity
6Red fox4.1 kg—Source ↗acceptable · captivity
7Golden eagle4.8 kg—Source ↗acceptable · captivity
8Koala9.3 kg—Source ↗high · captivity
9Gray wolf26.6 kg—Source ↗high · captivity
10Domestic dog40 kg—Source ↗acceptable · captivity
11Cheetah53.5 kg—Source ↗high · captivity
12Red kangaroo55 kg—Source ↗high · captivity
13Human62 kg—Source ↗high · captivity
14Orangutan64.5 kg—Source ↗acceptable · captivity
15Ostrich111 kg—Source ↗acceptable · captivity
16Harbor seal115 kg—Source ↗acceptable · captivity
17Giant panda117.5 kg—Source ↗acceptable · captivity
18Tiger119.7 kg—Source ↗high · captivity
19Gorilla139.8 kg—Source ↗acceptable · captivity
20American alligator150 kg—Source ↗high · captivity
21Lion175 kg—Source ↗acceptable · captivity
22Brown bear277.5 kg—Source ↗acceptable · captivity
23Horse300 kg—Source ↗high · captivity
24Polar bear475 kg—Source ↗acceptable · captivity
25Giraffe800 kg—Source ↗high · captivity
26Hippopotamus3,750 kg—Source ↗acceptable · captivity
27Killer whale3,987.5 kg—Source ↗acceptable · wild
28Bowhead whale100,000 kg—Source ↗acceptable · wild
29Blue whale136,000 kg—Source ↗acceptable · wild

Every row links to the original source used for that record. Values are rounded for display only; the scoring engine uses the stored source value. The snapshot date and unit are part of the topic’s definition, so a current live figure may differ.

The table has 29 rows, one for each accepted record. It does not list every alias or spelling variant; the game’s name matcher handles those at answer time. If two records share a value, both remain separate rows.

The range and the gaps

The 29 records run from 0 kg to 136,000 kg. The median is 111 kg, with a middle half from 9.3 kg to 277.5 kg. The largest adjacent gap is 96,012.5 kg between Killer whale and Bowhead whale. Every record has a distinct value in this snapshot.

The highest listed records are Blue whale (136,000 kg), Bowhead whale (100,000 kg), Killer whale (3,987.5 kg). The lowest are House mouse (0 kg), House sparrow (0 kg), Rat (0.2 kg). Use these as anchors before you make a ratio or year estimate; the table below gives every value.

What the table does not tell you

These are single snapshot values in kg for AnAge build 15 · selected species · high/acceptable records. The table is not a time series, a range of typical values or a measure of uncertainty. A source can round, revise or use a different definition in a later release; the game uses the stored snapshot for every score. Read the source and the record label before treating a value as a current live measurement.

How to estimate this topic

Animal weights are representative adult masses in kilograms, not a species range. Captive and wild specimens can differ, and the source labels data quality. Use 1 kg, 100 kg and 1,000 kg bands; a blue whale is far above the rest.

For a method that applies across topics, see the estimation guide. To practise this topic without changing a daily result, open the practice setup for Animal scales. The setup opens first; it does not start a clock automatically.

Recent daily use

No completed daily flight has used this topic yet. The next flights may include it; the practice setup is available now without changing a daily score.

Practise Animal scales →

Source, licence and snapshot

The listed source is AnAge · de Magalhães & Costa / HAGR ↗. Source release: Build 15, 2023-07-03. Snapshot: 2026-10-24. Licence / attribution: CC BY 3.0.

We select and transform source records for independently written game rules. The source material remains subject to its original licence. If a value looks wrong, send the topic, record, expected value and source through the contact form; do not send passwords or account credentials.

Mountain heights (8 records) · River journeys (30 records) · Lakes from above (30 records) · Animal lifespans (31 records)

All 27 topics · Archive · Source attribution