There are thousands of animal species in the world; they all perform a very important role in the food chain. There’s no exact number of how many animal species there are in the world, every year approximately 1,600 new species are discovered. According to Science Daily, “About 8.7 million (give or take 1.3 million) is the new, estimated total number of species on Earth”.
There are all sorts of rabbits, the domesticated ones, and the wild ones. In some cities like Cologne, Germany you can see wild rabbits running around parks. Rabbits have an excellent sense of smell, hearing and vision. They have nearly 360° panoramic vision, allowing them to detect predators from all directions.
Octopuses inhabit diverse regions of the ocean, including coral reefs, pelagic waters, and the ocean floor: they are considered the most intelligent of all invertebrates. Did you know that octopuses collect crustacean shells and other objects to construct fortresses, or "gardens," around their lairs? Other octopuses carry shells for protection.