These breathtaking photographs show that some animals take no chances when it comes to safety in numbers. Seen in every shape and size, from huge herds of wildebeest to colossal colonies of penguins, these creatures have no qualms when it comes to the issue of personal space.
Often seen during mass migration, these enormous groupings can be found in countries all over the world and prove an effective method of keeping themselves safe from predators. (Yahoo News)

Blue and yellow snapper fish seen in moving vast schools along the reef in Fiji. (Ron & Valerie Taylor/Ardea/Caters News)

Thousands of Monarch butterflies rest on a tree in North America. (Jean Paul Ferrero/Ardea/Caters News)