You can get in touch with Robyn by emailing r.white@newsweek.com A brand new lizard species with a hieroglyphic pattern on its back has been discovered among the sand dunes in eastern Iran.

Figure 2: Time series of the solitary-wave behaviour of two barchan sand dunes placed one in front of the other. For smaller Δh/h 2, we find two different situations. If the height difference ...

giving an indication of how much sand has been removed. (Open https://tmsnrt.rs/2Tiz7wU, opens new tab in a browser to see an interactive graphic showing how the Poyang has been scraped ...