There is sometimes a hole in the shiny brown centre of dark olive-brown slime or gleba (spore-bearing part) upon Aseroe rubra as in the photo. The brown part may disappear from older fungi, leaving the centre part also red and the specimen then presumably no longer able to procreate.

These fungi are found in places where the soil is organically rich (Wikipedia; https://australianfungi.blogspot.com; www.mushroomexpert.com).