Hosts: Ed Brown, Penny Dumsday, Lucas Randall
00:02:34 Archaeologists working in the Blombos Cave in South Africa have discovered what could be the world’s oldest drawing – from 73,000 years ago.
00:10:40 Surfers have long believed that nearby dolphins are a good sign that there are no sharks around. But new research suggests that’s not the case, as attacks on dolphins have increased in line with rising ocean temperatures.
00:19:33 The mirror test is an attempt to measure self-awareness in non-human animals. Now the Cleaner Wrasse has become the first fish ever to pass.
This episode contains traces of astrophysicist Neil deGrasse Tyson commenting on the dangers of smoking weed in space.