| Predator and prey species co-occur in brackish waterbodies close to the Mediterranean coast of Spain. |
| Headache and epilepsy are related in numerous ways, and they often co-occur. |
| However, the presentation of delirium is the same regardless of whether dementia is present because symptoms of delirium will dominate when they co-occur. |
| The ranges of species which do not co-occur in the field can then be compared directly. |
| There are numerous studies that have found that marital distress tends to co-occur with a wide range of psychiatric symptoms and syndromes. |
| The first is that a cloud of methane has been found to co-occur with long-established clouds of water vapour in the rarefied Martian atmosphere. |
