Fossils reveal an ancient platypus species (Obdurodon insignis) that still had teeth, offering insight into how this unusual animal evolved.
Earth.com: Platypus species that lived 25 million years ago had lots of teeth and a very strong bite
Platypus species that lived 25 million years ago had lots of teeth and a very strong bite
The animal kingdom is no stranger to astonishing abilities, including the remarkable power to regenerate lost or damaged body parts. Among these traits, the ability to regrow teeth stands out as both ...
The Brighterside of News on MSN: Ancient platypus had teeth 25 million years ago, fossils reveal
15 There's no special magic with " had had ", they don't really go together as a pair anymore than " had wanted " go together. So don't worry so much about how to use " had had " as a unit of grammar, they will come together naturally when you want to express the verb ' to have ' in the past perfect.
For example, what is the difference between the following two sentences: I had a bad day I had had a bad day
I have come across a few sentences that contain "have had". I would like to know in what kind of situations we should use this combination.
present perfect - When is it necessary to use "have had"? - English ...
It is used to describe experiences one has had in the past (and that hence influence the experience with which you speak today), changes over time, uncompleted actions, and things that have happened more than once.