Dinosaurs are not extinct!
Take a look at this picture:
It is placed on the same scale as the beginning of mankind (Holocene).
Later it is placed on the dinosaur age (Jurassic, Cretaceous).
Thatʼs where the sea turtle is placed.
The sea turtle is a reptile just like dinosaurs. As of this moment, on planet Earth, alongside humans, lives a contemporary dinosaur species, a rare one at that, which managed to adapt successfully to geological and natural phenomena as well as climate change (the latter being the reason dinosaurs disappeared). Some 200 million years later (from the beginning of the Cretaceous period and perhaps towards the end of the Jurassic period) the sea turtle continues to survive and coexist with humans.
When sea turtles die, they float and become food to other organisms. So, due to the disintegration of their bodies, their osteal remains sink to the bottom of the sea and fossilize. Sea turtle fossils both from shell parts and body parts, as well as traces of gastric residue and coprolites on sedimentary rocks which reveal sea turtlesʼ food preferences have been found.
However, the traces they leave as well as their nests during nesting season are difficult to preserve since the procedure takes place on sandy beaches. For Geologists, a sandy beach is a dynamic environment, sensitive and prone to change, thus, the geological archive is relatively meager of well preserved sea turtle traces. Nevertheless, the archive of the last 105 million years shows that in places with preserved coastal sediments, turtle structures but also traces of fossilized nests may be found.
Today, the body of the sea turtle consists of hard parts that keep it protected from its natural enemies. There is, however, something that penetrates its hard shell, threatening, in this way, not only its life but the whole survival of the sea turtle species. Interaction with man is the greatest threat for the sea turtle today. The rapid growth of living standards, the urbanization of coasts, ocean pollution and overfishing are only a few of the problems on this planet that lead this rare species to extinction at the moment.
A whole generation of organisms has forever disappeared from the face of the earth, the sea turtle being an exception. There must be a reason for that.
Even though many organisms have disappeared in the past, the percentage of those which are lead to extinction due to human activities today is high and this is quite alarming. Every ecosystem develops in such a way that it interacts harmoniously with the others and all of them with the human race. The presence of the sea turtle on Earth is the experiment which will prove whether humans can actually coexist in harmony with other species on earth.