When we think of animals or nature in competition, we picture aggression and savagery over resources such as food, territory and mates. Beyond aggression, however, the variety of animal behaviour associated with competition for resources is immense. A gentle form of competition is the bizarre mating ritual of our own unique Australian fauna: the echidna. 

 

Known as Tachyglossus Aculeatus and spiny anteaters, echidnas are quill-covered animals living in Australia and New Guinea. Since Australia is so isolated from other continents, our fauna has often been regarded by outsiders with an air of mystery and awe. To start with, echidnas are in the same family as the famed platypus, called monotremes (egg-laying mammals). Surviving monotreme species can only be found in Australia and New Guinea. The four species of echidnas, along with their duck-billed cousin, are the very few surviving members in this classification. 

 

Despite the similarities in their name and appearance in both being covered with hollow, spiny quills, these spiny anteaters are not actually closely related to the more well-known anteaters in the Americas on a genetic and evolutionary basis. Echidnas feed on a diet of ants and termites, using their electroreceptive beaks to find burrowing prey digging them out with their hind claws. These powerful claws are long and curved backwards, specially designed for digging. Funnily, when the British Museum received an echidna specimen, they switched the backward claws frontwards thinking that it was a mistake.

 

As mentioned before, mating rituals can be a violent (even bloody) ordeal in nature. From barbed penises in cats and deadly fights for females in elephant seals, straight to sexual cannibalism in praying mantises, there seems to be endless examples of brutality in the animal world. However, behind these brutal images is another side of nature that seems gentle and even humorous at times: for example, the ritual of our spiny suitors. 

 

Echidna mating rituals begin with the formation of a mating train. From June to September in Australia, male echidnas mate by lining up — from their beak tips to their spiny bottoms — to follow behind one single female. These trains can have more than 10 males in line and last for days, even weeks, at a time. During the mating season, male echidnas may leave a train to join or form a different train behind another eligible female. Their mating efforts often lead males to travel for long distances, even beyond their own home ranges. If the males get interrupted and lose track of the female, they reform their train by picking up her scent with their snouts in the air. They are such determined suitors that it is extremely difficult for a female echidna to evade them. 

 

Usually, there is one male that remains through the long-winded process, and they get to mate with the female. The reason behind forming echidna trains is unknown, but scientists generally agree that it is correlated with some type of selection process. One theory is that it aids the female in weeding out all the weaker males by tiring them out until the last one remains. Another is that the female is waiting for the right male that she is interested in to get behind her. Either way, it is a process of determination and perseverance. 

 

In exceedingly rare occasions where there are still multiple suitors left at the end, the males dig a trench surrounding the female and compete through head bumping. Although there is still much not understood about head bumping due to its scarce occurrence, it is generally considered an echidna social behaviour that serves to maintain dominance. Head bumps are generally only given by dominant echidnas to subordinate echidnas who haven’t recognised their dominance status and moved away. This rarely happens and is a relatively peaceful affair compared to conflicts in other animals. The winner of the mating head bumping ritual then digs until the previously mentioned trench is deep enough for him to be below the female so they can mate through their cloacas. 

 

23 days after copulation, the female lays a soft-shelled leathery egg into a temporary pouch where it continues to incubate for 10 more days when a tiny puggle (a baby echidna or platypus) hatches. The puggle drinks milk from the female’s special mammary hairs until it is capable of feeding itself and has fully covered spines and fur. At last, the matured echidna leaves their mother’s burrow to live independently. 

 

The mating rules and practices amongst echidnas are a demonstration of patience and courtesy. This contrasts with the general public misconception of nature being merciless, which is characterised by the brutal competition for food, social status and mating opportunities. Although they are in the same competition for a mate, the lines of waddling echidnas are polite, organised and humorous. Behind the mask of brutality, nature continues to have its pleasant secrets.