6/6. Ocean Deep. The seas make up 90 per cent of all the living space on our planet and are home to myriad bizarre and powerful species, including the vampire sguid, which uses bioluminescence to create an extraordinary display, and the sabre-billed sailfish. Producers Penny Allen, Andy Byatt ; Series producer Alastair Fothergill Shown last Sunday on BBC1 Repeated tomorrow at 7pm on BBC4 and with signing on Wednesday BBCI at 12.55am December's BBC Wildlife Magazine features birds of paradise - E3.25 RT DIRECT: hardback book Planet Earth is E17.50 (RRP E25) incl p&p. Call [number removed] (landline calls max 8p per min) or send a cheque, payable to BBC Shop, to [address removed]