S2 E24 Animals and their Poop - Volume 3 - Cat Pee and Bird Poop Spiders

We have more animals and their oh so interesting excretion! Karla and Sarah get philosophical and meta about human evolution and the expansion of the Universe. Karla tells us the possible dangers of cat urine, especially around pregnant humans. Sarah tells us the curious way this spider disguises itself by making its web look like bird droppings and the spider itself looks like a bird turd. NEATO!