Copyright holder
| Copyright Holder: | BBC - Natural History Unit |
| Address: | c/o BBC Motion Gallery |
| Room E251 | |
| Woodlands | |
| 80 Wood Lane | |
| London | |
| W12 0TT | |
| Telephone: | +44 (0) 20 8433 2861 / 2 |
| Email: | motiongallery.uk@bbc.co.uk |
| Website: | http://www.bbcmotiongallery.com |
Film credits
| Writer: | Desmond Hawkins |
| Photography: | Eric Ashby |
| Sound: | Peter Copeland |
| Film Editor: | Betty Block |
| Photography: | George Shears |
| Photography: | Bernard Hedges |
| Producer: | Suzanne Gibbs |
| Narrator: | Thomas Kelman Fleming |
