Eastern diamondback rattlesnake (Crotalus adamanteus) Photo by sdnet01/Pixabay. Beware the Crotalus adamanteus. Seriously, we’re not joking – this bad boy is considered to be the single most venomous snake in the whole of North America. So, that certainly puts it close to the top of the list of the most dangerous animals in Alabama. Fossa. A relative of the mongoose, the fossa is unique to the forests of Madagascar, an African island in the Indian Ocean. Growing up to 6 feet long from nose to tail tip, and weighing up to 26 Black rhinos are one of the most elusive animals of the Big Five and are also the rarest. Poachers have hunted them to near extinction, believing their horns have medicinal properties. Only 5,000 of them remain in the wild, so it is a treat indeed to spot one. Cape buffalos are the most dangerous of the mix due to their unpredictability. This aye-aye is only 4 months old. David Haring for the Duke Lemur Center.. When most people think about lemurs, what likely comes to mind is the eccentric but charismatic ring-tailed lemur, King Julien XIII, from the animated kids' movie "Madagascar." But ring-tails are just one of the 108 recognized species of lemur (plus at least 17 extinct species) currently on the planet. Among those Top 10 most dangerous animals in the world, ranked | BBC Science Focus. Which animal kills the most humans in a year? From dogs to mosquitos and other humans, here are the top 10 most creatures on planet Earth. The Lion: King of the Jungle. The African lion is one of the most iconic animals in the world and is undoubtedly the king of the jungle. Lions are large, powerful cats that can reach lengths of up to 3.3 metres and weigh up to 220 kilograms. They use their immense size and strength to take down large prey such as zebras, wildebeest, and even The Island of Madagascar lies off the coast of Africa in the Indian Ocean.. It is known as one of the hot spots of the world for Biodiversity, but many species of plants and animals are endangered or have become extinct before they have even been discovered.This is because the island has lost 90% of its original vegetation to human habitation and a policy of "slash and burn" agriculture. The 'weird' predatory fossa of Madagascar is threatened. It is one of the most unusual of all big predators, but the odd-looking, cat-like fossa, the largest carnivore on the island of Madagascar, faces an uncertain future. Few fossa can now be found in a place that was once a stronghold, as villagers hunt the animal as bushmeat and in a bid to Genus: Vespa & Vespula. Wasps, or what most people in Massachusetts call Yellow Jackets or Hornets, are species of insects that have a reputation for being angry, aggressive, and targeting humans. So it’s no wonder they’re considered dangerous animals! These stinging insects can be a nuisance and a real pain (literally). 1. Sea Urchins. The sea urchin is the first water-loving beast on the list of Jamaica’s most dangerous animals. The needle-like spikes on its body contain toxic chemicals that cause fatigue, weakness, muscle aches, shock, paralysis, difficulty breathing, and even death. 2x0M.