The very tender polar bear cub born at the Hamburg Zoo

Humans spend hours and hours of their time in the gym to strengthen their muscles: there are, however, animals that, by nature, have incredible strength. 

In this case, one does not consider strength in an absolute sense: it would not make sense, as some larger animals would inevitably be classified as stronger. Instead, one must take into account the animals that are able to undergo the greatest physical exertion in relation to their weight and size. 

Here are some of the strongest animals on the planet!

If you are a cat lover, you will be happy to know that living with a four-legged feline can bring numerous benefits to your health and mood.

This is proven by scientific studies, which have analyzed the benefits that cats can bring to people who share their lives with them. You'll discover how cats can help reduce stress, improve cardiovascular health, protect you from allergies, reveal a lot about your personality, and even save your life in emergency situations.

Get ready to discover the scientific side of the cat world and rediscover a love for these wonderful animals. (Source: focus)

Tons upon tons: the heaviest animals reach crazy numbers. Here are the maximum weights in the animal kingdom.

In general, the absolute heaviest animal is the blue whale, whose average weight is around 110-150 tonnes (the heaviest ever recorded even reached 199 tonnes!).

In the ranking, however, we have only considered terrestrial animals or animals that have both terrestrial and aquatic habits. Browse the photo gallery to find out more.

A purring cat is not always a positive sign, and just like other signs, it is often misunderstood.

Cats are wonderful animals, but can often be difficult for people to understand, especially when it comes to interpreting their mood.

The signals a cat sends can easily be misunderstood, which can lead to incorrect interactions with the animal.

In this photo gallery, we explore some of the facial expressions and cat behaviours that are often misinterpreted, to help cat owners and lovers better understand their kitty and establish a harmonious relationship with them.

Parasites are a constant concern for anyone with pets. Fleas, ticks and mites can cause discomfort and health problems for our four-legged friends.

It is essential to take preventive measures to protect dogs and cats from these unwanted pests.

Here are five valuable tips to protect your pets and keep your home environment safe and comfortable.

Sea turtles are a superfamily of Testudines adapted to marine life. Thanks to the elongated shape of their bodies, which are covered by a robust shell (or carapace), and the presence of 'legs' turned into flippers, these turtles have adapted perfectly to marine life.

They are among the oldest tetrapods on Earth, but in recent decades, due to climate change in the seas, dwindling food resources and pollution of the seas, they have become an endangered species in need of protection by the international community.

It is undeniable that human hunting has also contributed to bringing this species to the brink of extinction. Perhaps by knowing more about this wonderful animal, we can contribute to its worldwide repopulation.

Immerse yourself in the mysterious world of chameleons, fascinating and incredibly adaptable creatures. 

With their vibrant colours and camouflaging abilities, these animals never cease to amaze. 

Follow their adventure as they camouflage themselves among the leaves of their habitat, becoming invisible to the eyes of predators. But their skills don't stop there: discover how they manage to change the colour of their skin to communicate, court or defend themselves. 

Let's discover together some interesting facts about chameleons that will make you reflect on the extraordinary diversity of nature.