Hesperornis
CreatureMisc

Breeding calculator
Hesperornis
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SettingsHatch 2× · Mature 2× · Food 1× · Weight 70
Baby: The hatched dinosaur, now a baby, needs constant attention and food placed directly in its inventory to survive, or a nearby Maewing to take care of its needs.
- Incubation
- 45m 27s
- Maturation
- 14h 1m 45s
- Incubation temperature
- 22 - 30 °C
- Food at birth
- 42.5/min
Maturation Progress
- Status:
- Baby
- Time Left:
- 13:19:39
- Total Time:
- 14:01:45
Maturation
Incubation Time- 45m 27s
Elapsed Time- 42m 6s
Maturation Time Left- 13h 19m 39s
Time to Juvenile- 42m 5s
Food
Total Food Items- 716items
Food to Adult- 467items
Food Per Hour- 98
Food Capacity- 35items
Baby Hand Feed For- 14m 27s6.7% maturation
Imprinting
Cuddle interval- 4h 48m
Imprint per cuddle- 74.8%
Maximum imprint- 100.0% (2 cuddles)
Settings8 h · interval ×0.6 · amount ×2
Raising food
Food per item- 25
Stack size- 40
Eats at 5%- 40.38 food/min
Maturation- 14h 1m 45s
| Stage | Time remaining | Food points | Raw Fish Meat | Stacks | Weight |
|---|---|---|---|---|---|
| 42m 5s | 1,655 | 67 | 2 | 6.7 | |
| 5h 36m 42s | 10,018 | 401 | 11 | 40.1 | |
| 7h 0m 52s | 4,472 | 179 | 5 | 17.9 | |
| Total | 13h 19m 39s | 647 | 18 | 64.7 |
Total: 647 Raw Fish Meat
Feeding Trough- 2,400 items (60 slots)Fits in one load
Tek Trough- 4,000 items (100 slots)Fits in one load
Maewing / Maeguana- 300 slots50% weight reduction on meat & berries
- Juvenile - 5x trough refills needed (food spoils before phase ends)
- Adolescent - 6x trough refills needed (food spoils before phase ends)
Spoils in 20m | Trough / Maewing: 1h 20m | Tek Trough: 1d 9h
During the Baby phase (0-10%), you must hand-feed or use a Maewing to nurse. From Juvenile (10%+), dinos can eat from a Feeding Trough on their own. Use Preserving Salt in troughs to double spoil times.
More about breeding the Hesperornis
The Hesperornis reproduces by laying fertilized eggs after mating. Incubation temperature must stay between 22°C and 30°C - use Air Conditioners, Standing Torches, or Dimetrodons to maintain the range. At the correct temperature, the egg hatches in approximately 1 hour and 30 minutes.
Full maturation from baby to adult takes ~1 day and 4 hours (1x rate), progressing over a lengthy period. During the baby phase (0–10%), hand-feed it directly. From 10% onward (juvenile), it can eat from a Feeding Trough.
Offspring inherit parental stats and have a small chance to mutate, gaining +2 levels in a random stat. Use the breeding calculator to plan food requirements, incubation timers, and maturation phases.
Raising a baby Hesperornis involves three maturation phases: Baby (0–10%) lasts ~168 min and requires constant hand-feeding. Juvenile (10–50%) spans ~11h - it can eat from a Trough now. Adolescent (50–100%) takes ~14h - continues eating from troughs, nearly fully grown.
Imprinting during maturation provides permanent stat bonuses. At 100% imprint, the Hesperornis gains 30% bonus damage and resistance when ridden by the imprinter. You'll be asked to cuddle, walk, or feed specific kibble at regular intervals during maturation.
The raising calculator above shows exactly how much food you need for each maturation phase of the Hesperornis. Budget ~168 minutes for the Baby phase - this is when hand-feeding or Maewing nursing is mandatory.
Raising multiple Hesperornis simultaneously? Set the dino count and the calculator scales food requirements automatically. Different food types have different spoil timers - factor that into which food you stockpile.
The Hesperornis is a tamable, aquatic, piscivore creature in ARK: Survival Ascended. Classified under the Misc group.
Melee starts at 100% - solid damage output that scales with level-ups. Health-wise, the Hesperornis sits at 95 base, making it very frail. With 200 base Stamina, the Hesperornis has decent staying power. A base Weight of 70 means not built for hauling.
As a tame, the Hesperornis is well-suited for deep-sea exploration, cave diving, and ocean resource runs. Breeding produces fertilized eggs that hatch within a 22°C–30°C temperature window. Defeating one in the wild grants 0.5 base XP. It can be cloned at a Cloning Chamber for 0.25 Element plus 0.01 Element per level.