Welcome to A-Z Animals
"A-Z Animals was founded on three guiding principles: accurate content you can trust, spreading knowledge on the animal kingdom, and giving back"
Today, more than 30,000 species are threatened with extinction, and thousands would already be lost without tireless conservation efforts. Knowing that the first step toward conservation is spreading knowledge of the incredible animals species across our planet, A-Z Animals was founded in 2008 to offer an online encyclopedic resource across animals of all kinds. Read More
Explore A to Z Animal Lists
Our Endangered Animals Lists
The most numerous species of tiger!
Renew their horns every year!
Extremely thick winter fur!
Long, black tongue can grow to 18 inches long!
The fastest land mammal in the world!
Closely related to crabs and lobsters!
There are more than 160 different species!
Has 20 different muscles in it's ears!
It's horns are made from keratin!
Spends 80% of it's time resting!
Has no real natural predators!
Spends up to 80% of the time sleeping or resting!
Lives in small groups called prides!
There are less than 3,000 left in the wild!
Prefers to hunt at night than during the day!
Some species have a poisonous bite!
A-Z Animal's Blog
What makes an animal tough? Animals are considered tough for their ability to withstand harsh conditions or difficult situations. Often, they have a unique adaptation that allows them to take on these challenges.
The animals on this list are considered tough for a variety of reasons - from how well they can defend themselves against larger predators to their ability to survive extreme temperatures. You may be surprised by which animals are considered the toughest creatures on earth! Discover why they made the list.
What are the ten friendliest animals in the world? Well, we first need to define "friendly." For our purposes, it means "gets along well with humans." But let's not confuse "gets along" with "makes a good pet." Even though some animals are sweet, that doesn't mean everyone should keep them as pets. Animals, including humans, have vital needs — and if we can't satisfy them, we shouldn't assume the responsibility.
But enough lecturing! Let's rank the 10 friendliest animals in the world.
In the constant war between predator and prey, size and strength can be a decisive factor to help an animal survive the cruel whims of nature. However, there are several ways to measure strength, including lifting strength, bite strength, kick strength, and overall power.
For the purpose of this article, we will be defining strength in absolute terms, not in strength relative to body size (which would make insects some of the most powerful animals on the planet). Note that this article also lists animals in their general groups. A group may be defined as an entire order or just an individual species.