Emperor penguins take long walks, resist hostile winds and temperatures, and stop eating for several months in order to complete the most difficult of their stages: breeding.

More information: http://www.penguins-world.com/emperor-penguin/

Nature and biodiversity: http://www.bioexpedition.com/

Some species of penguin are threatened by factors such as pollution, weather phenomena and hunting, which endanger the balance of their populations.

More information: http://www.penguins-world.com/penguin-conservation/

Nature and biodiversity: http://www.bioexpedition.com/

The Commerson's dolphin or panda dolphin, is a small and compact species that is distributed by two very specific points of the Earth: the Falkland Islands and the Kerguelen Islands.

More information: http://www.dolphins-world.com/commersons-dolphin/

Nature and biodiversity: http://www.bioexpedition.com/

Inia geoffrensis is the largest of all river species and has three subspecies that are distributed by the most exotic and emblematic bodies of water in South America: the Orinoco and the Amazon.

More information: http://www.dolphins-world.com/amazon-river-dolphin/

Nature and biodiversity: http://bioexpedition.com/

These dolphins are found living in tropical waters around the world and they are known for their high level of intelligence. We introduce you to bottlenose dolphin.

More information: http://www.dolphins-world.com/bottlenose-dolphin/

Nature and biodiversity: http://www.bioexpedition.com/

The human-gorilla relationship has seen some of the most amazing people like Dian Fossey, but also some of the most despicable behaviors taking the species to the brink of extinction.

http://www.gorillas-world.com/gorillas-and-humans/

More information: http://www.monkeyworlds.com/new-world-vs-old-world-monkeys/

Similarities and differences between Old World Monkeys and New World Monkeys.

Facts about monkeys: http://www.monkeyworlds.com/facts-about-monkeys/

Not only great apes are capable of using tools, the science has shown that monkeys also make use of them.

Information about monkeys: http://www.monkeyworlds.com/

Differences between the great apes and monkeys.

Information about whale shark: http://www.sharks-world.com/whale_shark/

These sharks are filter feeders, so finding food isn’t a problem for them!