Animal ID
/Natural History/Animal Life Cycle & Growth
Explore Taxon:
Placental Mammal Ontogeny

Common Hippopotamus
Hippopotamus amphibius

Explore the complete life journey from birth to maximum documented longevity. Move the interactive age slider below to see real-time biometric growth ranges, developmental milestones, metabolic changes, and ontogenetic stages.

Avg Wild Lifespan
40 Years
Typical in habitat
Max Documented
60 Years
Record longevity
Peak Daily Gain
Species-typical; fastest during 0–5 years
Growth velocity
Aging Pattern
Gradual Aging
Senescence curve
Common Hippopotamus
Taxonomic Hierarchy
Artiodactyla / Hippopotamidae
1

Interactive Lifespan & Growth Scrubber

Drag the slider or click any milestone step to observe dynamic biometrics and physiological changes.

🦛
Active Life Stage
Young
🐣 Birth / Day 0Selected Age: Birth / Hatch / Day 0👑 Full Maturity & Maximum Longevity
Total LengthRange
11.2 m
Peer-reviewed anatomical bounds for this developmental bracket.
Body Mass RangeEstimated
2545 kg
Velocity: Rapid growth phase
Reproductive Maturity0%
Juvenile pre-pubescent phase
Predation Vulnerability
Critical (High Predation)
Survival probability relative to adult predation apex status.
🌿Dietary Intake & Nutrition at Birth / Hatch / Day 0

Milk (often underwater).

🐾Behavior, Locomotion & Ecology

Dependent early stage (daytime aquatic refuge).

Key Developmental Milestones at this Stage:
First independent feeding attempts
Scientific Note on Precision: Growth values are approximate biological ranges derived from field and veterinary records. Exact size varies by sex, population genetics, nutritional availability, climate, and health.
2

Taxon-Specific Life Stage Machine

How Common Hippopotamus progresses through distinct morphological phases.

🦛
Stage 1

Calf

0–6 months

Common Hippopotamus calves are mobile soon after birth (daytime aquatic refuge).

Anatomical Highlights:
  • Standing within hours
  • Nursing focus
Ecology: Followers/hiders depending on species.
🦛
Stage 2

Juvenile

6–24 months

Weaning and independent foraging skills.

Anatomical Highlights:
  • Rapid skeletal growth
Ecology: Juvenile herbivore.
🦛
Stage 3

Subadult

2–4 years

Approaching adult size; males may practice dominance displays.

Anatomical Highlights:
  • Near-adult height/mass
Ecology: Subadult.
👑
Stage 4

Adult

4–30+ years

Prime adult with nocturnal grasslands ecology.

Anatomical Highlights:
  • Adult dentition
  • Full skeletal size
Ecology: Adult herbivore.
🌟
Stage 5

Elder

Late life

Tooth wear reduces foraging efficiency.

Anatomical Highlights:
  • Worn molars
Ecology: Elder.
3

Growth Timeline Reference Matrix

Standardized peer-reviewed biometric development data.

Age MilestoneLife StageTotal Length RangeBody Mass RangeMaturityDietary Regime
🦛Birth / Hatch / Day 0Young11.2 m2545 kg0%Milk (often underwater).
🦛Early growthYoung1.21.5 m178255.6 kg12%Night grasses with mother.
🦛Mid juvenileJuvenile1.72.2 m471.3659.3 kg35%Nocturnal grazing.
🦛Late juvenileJuvenile2.22.9 m7901098 kg60%Nocturnal grazing.
🦛Near maturityAdult2.73.6 m1108.81536.8 kg85%Nocturnal grazing.
👑Prime adultPrime Adult33.9 m1274.51764.9 kg98%Nocturnal grazing.
👑Later adultElder34 m13001800 kg100%Nocturnal grazing.
Growth Velocity Profile
Peak Expansion: 0–5 years
Proportion at Birth: Birth/hatch size is a small fraction of adult size for Common Hippopotamus
Sexual Dimorphism & Human Scale
Male vs. Female: Males heavier with larger fighting tusks.
Scale: 20–25× human mass
Developmental Breakthroughs

Key Milestones in the Life of a Common Hippopotamus

🌱Early life

Common Hippopotamus Early Independence Skills

Critical early learning period unique to common hippopotamus ecology.

📈Growth peak

Peak Growth Window

0–5 years is when size accumulates fastest.

👑Maturity

Sexual Maturity

Typical maturity near 7 years for this species.

🧭Adult ecology

Adult Niche Mastery

Adults specialize in daytime aquatic refuge.

🍽️Nutrition shift

Diet Transition

Night grasses with mother.

Frequently Asked Questions About Common Hippopotamus Life History

Scientific answers to high-intent queries regarding lifespan and growth.

Often 35–50 years wild.

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