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As a young buck was walking through the forest he noticed a doe in a tree feasting on some eucalyptus leaves.

While eucalytpus leaves are poisonous to most animals, koalas use bacterial enzymes in their caecum to detoxify the toxins found in the leaves. They have a relatively simple stomach, but their caecum is the most developed of the mammalian class because it is where the majority of absorption takes place.

The doe was eagerly consuming the leaves, using her incisiors to snip off the leaves from the tree, and transferring them to her diastema for mastication.

The buck watched in amazement, completely mesmerized by her curves, especially her spinal curve which is due to the fact that she only has elevel thoracic vertebrae and eleven pairs of ribs.

He couldn't get his eyes off the cartilaginous pad at the end of her spine, which cushioned her as she had her meal. He was in love.

The buck decided he would go for the kill. First, he scent marked the tree using his sternal gland, a dark, moist, hairless patch in the middle of his chest. Scent marking would ensure that any other koala would know that this was his territory based on chemical cues from his gland secretions.

He climbed the tree with ease, using his front paws, which consist of five digits with two opposed. The opposed digits helped him grip the tree as he made his ascent.

His ulna and radius are long in relation to the rest of his body, so he was well equipped to this task. He was tireless in his climb because his enlarged quadriceps and hamstrings made for easy climbing. He got closer and closer to where the doe was; he was determined to make her his woman. 

He used the unique placement of his vocal chords to emit a mating call twenty times louder than that of his marsupial cousins

He did all the he could do; it was up to her to decide. Would she accept his offer at courtship?

34-36 days later

Thirty-five days later, a joey was born. The doe was an excellemt mother to the joey. The conraction of her specialized shincter muscles in the openng of her pouch secured the joey inside, so he ould not fall out as she roamed the canopies of the eucalyptus forest.

The young joey was warm and safe in her pouch for 5-6 months, feasting on one of her two teats until he would grow up and leave in search of his own doe.


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