Crocos

The young crocodile emerges from the egg with a length of 20–30 cm (8–12 inches). At first it remains with its siblings concealed at the edge of its water habitat in order to avoid various predators. Principal among these are fishes and birds, but larger crocodiles also prey upon the young.

Crocodiles are mostly nocturnal animals. They are predators and spend most of their time in the water; although they are also known to make journeys of several kilometres over land. In the first weeks of life, crocodiles eat insects, crustaceans, snails, small fishes, frogs, and tadpoles. Older crocodiles mainly eat fish and are more apt to prey upon waterfowl and on mammals. Occasionally, a member of one of the larger species eats a human, though such incidents happen so infrequently that crocodiles cannot be generally regarded as man-eaters.

Crocodiles are sexually dimorphic, and adult males are larger than females. Copulation occurs in the water, and it is preceded by a complex courtship in which the animals signal each other using changes in body profile, touch, and vocalization. Chemical signals are probably also part of courtship. The male then mounts the back of the female, and both animals rotate their tails so that the respective cloacae are brought into contact and intromission of the male erectile organ is achieved.

Interesting Crocodile Facts

1. Crocodiles are carnivores, which generally means they eat only meat. However, a recent study proved they also enjoy an occasional taste of fruit.

2. Crocodiles can go through 4,000 teeth over a lifetime.

Crocodiles have between 60-110 teeth. When a crocodile loses a tooth, there is a small replacement already on standby. They are able to replace each of their 80 teeth up to 50 times over their lifespan.

3. A crocodile’s jaws can apply 5,000 pounds of pressure per square inch – the strongest bite of any animal in the world.

A human’s jaw only produces 100 pounds of pressure per square inch in comparison. A crocodiles bite is 10 times more powerful than a great white shark.

5. An easy way to tell the difference between a crocodile and an alligator, is when a crocodile closes it’s mouth, all teeth are visible – as the upper and lower jaw are the same width.

Whereas an alligator possesses small depressions in the upper jaw for the lower teeth, meaning they are not visible when their mouth is shut.

6. The longest crocodile captured alive measured 6.17 m (20.2 ft) and weighed at 1,075 kg.

7.facts-about-crocsCrocodiles swallow small stones to improve digestion. These stones help grind up the food in their stomachs.

Swallowing stones (known as ‘gastroliths’) is especially beneficial for crocodiles that eat their prey whole, or for tougher animals with shells and bones. A gastrolith can remain inside the stomach for years.

BLUE 🐋

The blue whale (Balaenoptera musculus) is a marine mammal reaching a maximum confirmed length of 29.9 meters (98 ft) and weighing up to 199 metric tons (196 long tons; 219 short tons).

It is the largest animal known to have ever existed. The blue whale's long and slender body can be of various shades of greyish-blue dorsally and somewhat lighter underneath. 

Four subspecies are recognized: B. m. musculus in the North Atlantic and North Pacific, B. m. intermedia in the Southern Ocean, B. m. brevicauda in the Indian Ocean and South Pacific Ocean, B. m. indica in the Northern Indian Ocean. There is also a population in the waters off Chile that may constitute a fifth subspecies.

Here Are Some Interesting Facts About Blue Whales

1. Blue Whales Can Grow More Than 100 Feet Long

They are gigantic. Generally ranging in length from 80 to 100 feet (24 to 30 meters), the longest one ever recorded was a magnificent 108 feet (33 meters) long. That's about as long as three school buses lined up end to end.

2. They Can Weigh as Much as 30 Elephants

The average weight for these gentle giants is 200,000 to 300,000 pounds (90,000 to 136,000 kilograms), or about 100 to 150 tons. Some can weigh as much as 441,000 pounds (200,000 kg), or 220 tons. For comparison, an adult African bush elephant weighs up to 6 tons, so it may take 30 or more elephants to equal the weight of one blue whale. Wow!!! Amazing right?🤥

3. They Have Big Hearts

The blue whale's heart is huge. It's the largest heart in the animal kingdom, weighing about 400 pounds (180 kg) and roughly the size of a bumper car. Another amazing fact!!

9. They Have Long Life Spans

Blue whales are among the planet’s longest-lived animals. The oldest blue whale they’ve discovered this way was calculated to be around 100 years old, though the average life is thought to last around 80 to 90 years.

11. Their Future Remains Uncertain

While commercial whaling is no longer a threat, recovery has been slow and new threats plague blue whales, like ship strikes and the impact of climate change.