Wolf's Milk Slime Mold
One of the most commonly encountered slime molds and easily recognized because of its coloring and spherical shape. It is a Myxomycete, an amoeba that has become swollen and multinucleated, preparatory to reproduction. The fruiting body is called an aethelium, and measures about 5-15mm across. It typically starts bubble-gum pink, but changes to yellow-brown and then gray or black, as the spores inside mature. At first if poked it will ooze pinkish goo, noted above, but with time the interior becomes solid and whitish as millions of spores are produced. Eventually it cracks open releasing spores. Not a fungus, though looking like one and often studied by Mycologists