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Animal Facts

All informative and interesting articles about the world of animals. Curiosities about fauna, information about the animal kingdom, its protection and many other contents about the species that compose it.

Tyrannosaurus Rex and its young feeding on an Alamosaurus carcass in Hell Creek 66 million years ago. By Herschel Hoffmeyer | Shutterstock.com

How many false myths about dinosaurs do you know?

If we were to list the number of false claims out there about dinosaurs, it’d be never-ending. From the belief that they only inhabited warm habitats (they also lived in frozen areas), that they were all enormous (there were also very small dinosaurs), to the misconception that their size...
Peacock with spread wings in profile. By Viliam.M | Shutterstock.com

Animal communication: honest, dishonest and costly signalling

How do animals communicate? Animal communication is the transfer of information between individuals and groups of animals. This could be intraspecies communication, such as sounds and vocalisations produced by whales in a pod. But it also includes interspecies communication, which can be seen in cases of great apes being taught...
Polar Bear (Ursus maritimus). By Vaclav Sebek | Shutterstock.com

Are species larger in cold environments? The principles of Bergmann’s rule

Nature isn't inert or homogeneous; thousands of processes and phenomena take place in it every second, leading to significant environmental changes. Nature is a living medium, with different habitats in which countless physical, chemical and, of course, biological interactions happen on a daily basis, creating an environment full of nuances...
Elephant mother and baby in forest, Thailand. Pic by tdee photo cm | Shutterstock.com

Wildlife hotspots in Southeast Asia: Thailand, Vietnam, Laos and Borneo

Extraordinary biodiversity This decade has seen a tourism boom in Southeast (SE) Asia, with millions of international visitors flocking to Indochina and beyond in search of adventure. Budget-friendly backpacking, exotic cuisine, historical and cultural treasures. The list of reasons for visiting is endless but, for us, wildlife holds the top...
Tiny chameleon Brookesia micra on human inch, smallest known chameleon and among the smallest reptiles of the world. Antsiranana Province, Madagascar wildlife. By Artush | Shutterstock.com

Why does dwarfism occur in nature? Pygmy animals and their evolution

Size matters in the animal world. In colder climates, being large helps minimise the loss of body heat. For a large predator, body size may be the key to overpowering its prey. Whereas, for a large herbivore, like a bison, body size may be its greatest defence. And, even...
Great grey Shrike Cover

4 animals and their fascinating feeding habits

Eating like animals  A part of growing up is learning how to eat, but mealtime etiquette can be a tricky business. From culture to culture, there are a range of elaborate rules that apply. For example, in China, leaving some food on the plate is a sign of politeness. While,...
Aldabra giant tortoise. By Daniel Wilson | Shutterstock.com

Longevity: a look at the shortest and longest lives in the animal kingdom

Life, but not as we know it. For all the scientific advances that humankind has made, we’re still grappling with some of the fundamental questions about life. Not just the distant, existential questions, such as the origins or meaning of life, but more immediate questions about life on Earth. Are...
Saiga antelope (Saiga tatarica) in the morning steppe. Mekletinskii Federal Nature Reserve, Kalmykia, Russia, August 2015. By Victor Tyakht Shutterstock.com

The saiga antelope. A species with a challenging existence.

The saiga (Saiga tatarica) is a medium sized (60 to 80 cm tall) antelope that inhabits the steppes of Central Asia and is classified by IUCN as "critically endangered". They live mainly in Kazakhstan and Uzbekistan, although they can be found in various areas of Russia (Kazan), China and...
Spirit bear (Kermode). By Anette Holmberg | Shutterstock.com

Have you ever heard of the Kermode bear, also known as the Spirit bear?

The Kemode bear: Spirit of the forest Deep within the Great Bear Rainforest, in Canada, all is not as it seems. The unique ecosystem produces strange natural scenes. On this coastal land, dampened by dense mist, we can still find indigenous tribes who began living there long before the white...
Iceland horses. By Fabian Burghardt

The domestication of animals: origins, general characteristics and stages

In the last few years, the idea that human development has been altered by the cultural changes and transformations that have occurred throughout the centuries seems to have gained ground. Indeed, these cultural processes have an obvious impact on human evolution. One of the most important cultural renovations in our...
Two wolves fighting on snow. By David Dirga | Shutterstock.com

The social system of dominance in animals: hierarchy and submission

As we have already discussed in previous articles, there are many species of animals around the world that have decided to live in a collective, associative and participative way. That is, they have determined that the most effective means of survival is to live in a group. This...
The Big Five: the wildlife stars of African bush

The Big Five: the wildlife stars of African bush

‘The Big Five’ is synonymous with African safaris. While the term is now widely used within the realms of wildlife tourism, the term (originally ‘big five game’) was actually coined by hunters.  The African elephant, African lion, African leopard, Black rhinoceros and Cape buffalo are not the biggest animals in...
A cute koala. By Yatra | Shutterstock.com

What are the longest sleeping mammals?

You've probably heard that adult humans should sleep an average of 8 hours a night to properly fulfil their (or "our") daily personal, professional and academic obligations. Getting enough rest is extremely important, as it brings a lot of physiological (and adaptive) benefits and advantages. But resting is not...
The Amazon molly does not produce any male offspring. The females reproduce asexually through gynogenesis. Nevertheless they need sperm to trigger the cloning process. By Manfred Schartl

The Amazon molly: the small fish making a big splash in science

What is the Amazon molly and how did it get its name? The Amazon molly (Poecilia formosa) is a small, inconspicuous freshwater fish. It belongs to a genus of around 40 fish species, which includes the well-known guppy. Amazon mollies are omnivores and spend their days feeding on small invertebrates,...
Sexual selection. Great crested grebe. By Pim Leijen | Shutterstock.com

Reproductive strategies and mating systems: the foundations of sexual selection in animals

For many years, it has been been thought that living beings were basically organisms that are born, grow, reproduce and die, or that they were organisms that fulfilled their physiologic functions: nutrition, relation and reproduction. Such statements are, with some nuances, valid definitions of a “living being” and they...