Top 5 Deadly Substances Known to Man

There are lots of things that can kill you; even walking across the road can be a perilous occupation.

In terms of deadly substances, that is toxins, bacteria and viruses, there are some pretty nasty characters lurking in Mother Nature and in this video the guys at SciShow list their top five deadly substances known to man.

It’s truly fascinating stuff.

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BacteriaDeadly SubstancesToxinsViruses