1. To explain this, they hypothesise that galaxies must contain a great deal of missing matter which cannot be detected.

2. Suppose for instance we hypothesise that cooperative conversationalists would ask others for their opinion very frequently and regularly express agreement.

3. This led Reed to hypothesise our ancestors had already lost their body hair - except in pubic and axillary areas - 3.3 million years ago. That's an even bigger leap backwards.

4. Indeed, the researchers hypothesise these objects were formed in a planetary disc, like the planets in our own Solar System, before gravitational forces ejected them from these systems.

5. They hypothesise that cells in the human brain could behave in a similar way.

6. "The authors found a thicker vaginal wall near the urethra and hypothesise this may be related to the presence of the controversial G spot, " says Tim Spector at St Thomas' Hospital in London.

1. To explain this, they hypothesise that galaxies must contain a great deal of missing matter which cannot be detected.