Slime moulds

Ever noticed weird looking patches appear in your garden, especially on mulch - almost like a a giant prehistoric bird dropping?!  Welcome to slime moulds. They are not really fungi, but have previously been lumped in this Kingdom. 

Here are a few pictures over three days. 

The yellow sticky mass of cells actually move across the ground like a sentient creature, seeking out food. 

Here is a link to a slime mould documentary preview `The Creeping Garden'.