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Animals

Top 10 heaviest animals

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There are many animals on the Earth that are large and impressive. Some animals can weigh in excess of tens of thousands of tonnes! We don’t get to see them in their natural habitats often here in France. We can only count on animal parks, zoos and aquariums to allow us to see some of them. Zoom on these ten giants to find out everything.

1- The blue whale
The blue whale (Balaenoptera mucuus), also known as the blue whale, is a cetacean of the Balaneopteridae. It is an aquatic mammal. In adulthood, the whale is the largest living animal on the planet. It can grow to 30m in length and weigh 170 tons. The whale’s liver is 600 kg and weighs 1 ton. The penis measures 2.40 meters in length.

After a 10-12 month gestation, the baby calf measures 7 m in length and weighs 2.5 tons at birth. His growth rate is remarkable as he eats 90kg every day. His mother breastfeeds him for approximately 8 months. During that time, he consumes approximately 570 liters daily.

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Male and female whales reach sexual maturity at ages 5-15 years. Scientists have estimated that this cetacean will live for 80 years. Due to illegal intensive hunting, the species is in danger of extinction. It is now on borrowed time and has unfortunately been added to the endangered animal list. Global warming also impacts the ocean acidification.

2 – The whale
According to current information, it is the second largest cetacean on the planet. Balaenopteraphysalus, the fin whale, is 27 meters long and 70 tons in weight. It is not only the largest animal in the world but also ranks first among the most noisy marine mammals.

After 7 months of gestation, a single minke whale is born from the litter’s five to six fetuses. A female fin whale can have one litter to term every three years. At 6 months old, her baby was fully weaned. Although it is only 6 months old, the baby still measures about 12 meters in length.

Since the fin whale was designated as an endangered animal, it has been protected. Its status has been changed from “threatened to vulnerable” since 2018.

3 – The whale Shark
The Rhincodon typus whale shark is an exceptional representative of the genus Rhincodon. This cartilaginous shark is distinct from all other shark species due to its checkerboard-lineage. In adulthood, it measures 20 m long and weighs in at around 35 tons. These impressive dimensions allow it to claim the title of largest fish on Earth. It is completely harmless to humans and does not show any aggression.

Scientists have estimated that the life expectancy for the whale shark is between 110 and 150 years. However, we know that this species is at risk.

4 – The great Sperm Whale
It is also known as the macrocephalic sperm Whale (Physeter macrocephalus, or P. catodon), or simply sperm. This toothed cetacean, which is the only representative of the genus Physeter and the world’s largest carnivore, can reach depths up to 900 m in apnea. It can reach up to 15 tons in weight and measures 20-25 m in length. It lives for about 70 years. It is considered vulnerable.

5 – The African Elephant
Loxodonta, the African elephant (or Loxodonta), is a mammal in the Elephantidae family. The African forest elephant has small, circular ears and the African Savannah elephant has larger, longer ears. It is currently the largest terrestrial mammal alive, measuring 7 m in length and 3.50 m high.

The African elephant, which is highly prized by poachers and is protected as an endangered species, is highly sought-after.

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