Here is a concise summary of the text:
**Subject:** Leopard Seal (Antarctic's Top Predator)
**Key Points:**
1. **Habitat:** Exclusively found in Antarctica, with adaptations for harsh, icy waters.
2. **Physical Characteristics:**
* Up to 4m long, 400kg weight
* Thin subcutaneous fat, streamlined body, powerful jaws, and sharp teeth
* Distinctive dark gray and light-colored skin for camouflage
3. **Hunting Behavior:**
* Mainly feeds on warm-blooded animals (seals, penguins, elephant seal calves)
* Also consumes krill and small crustaceans (up to 50% of diet when abundant)
* Skilled, adaptable hunter with various tactics, including playing with prey
4. **Interesting Facts:**
* Not afraid of humans, with one documented fatal attack
* Solitary hunter, except during summer mating season
* Can live up to 26 years, with a population of over 400,000 individuals (not endangered)
5. **Reproduction:**
* Females give birth to a single calf (approx. 1.5m long, 30kg) after a 9-month gestation
* Calves feed on rich mother's milk for 4 weeks before switching to underwater food
Here are the key facts extracted from the text, numbered and in short sentences:
**Physical Characteristics**
1. Leopard seals can grow up to 3 meters in length and weigh about 300 kilograms.
2. Males and females can reach up to 4 meters in length and weigh up to 400 kilograms.
3. They have a very thin layer of subcutaneous fat.
4. Their body is long and streamlined, allowing for high-speed swimming.
5. They have two rows of sharp teeth and powerful fangs.
**Habitat and Distribution**
6. Leopard seals live exclusively in the Antarctic.
7. They are found in the cold waters surrounding Antarctica.
**Diet and Hunting**
8. They primarily feed on warm-blooded animals (unlike other seals).
9. Their diet includes penguins (up to 80%), seals, crabs, and krill.
10. They can dive up to 300 meters in search of prey.
11. They use various tactics to hunt, including ambushing penguins in the water.
12. They can play with their prey before killing it, possibly to train hunting skills.
**Behavior and Social Structure**
13. Leopard seals are generally solitary hunters.
14. They only come together in small groups during summer (November to February) for mating.
15. They are not afraid of humans and may swim close to people.
**Reproduction**
16. Female leopard seals give birth to a single calf after a 9-month gestation period.
17. Newborn calves are approximately 1.5 meters long and weigh around 30 kilograms.
18. Calves feed on their mother's rich milk for four weeks before eating solid food.
**Conservation Status**
19. Leopard seals can live up to 26 years in the wild.
20. They are not hunted by humans, which may contribute to their relatively stable population.
21. Their population numbers over 400,000 individuals, and they are not considered endangered.