Overlapping generations have been also observed in the Amazon basin for S. didactylus and Neocurtilla hexadactyla but more observations are needed [ 12].
More observations are needed to pin down its orbit.
For most of the targets, no preliminary observations are needed.
For example, amateurs play a crucial role in fields where large numbers of observations are needed.
These arguments are reasonable, but better observations are needed to rule out this scenario.
More observations are needed of the North Atlantic's flow onto the Greenland shelf.
This is relevant when existing archetypal observations are needed, rather than fictitious ones.
There is some evidence of red admirals having undertaken southward migratory flights in autumn, but more observations are needed.
That is why new and better observations are needed to improve the fundamental assumptions on which the models are based.
Second, high-quality observations are needed so we can assess whether the type of event (such as flood, heat wave, drought, storm, etc). is changing over time.
The source could be either a nuclear supermassive black hole or perhaps a pair of binary stars emitting X-rays - additional observations are needed to resolve the issue.
