Fish are vertebrates, which are adapted to life in the aquatic environment. Fish are the most numerous group of vertebrates. The number of different species of fish is almost as much as all other vertebrates together.
Sochi is a city in Krasnodar Krai, Russia. This winter Sochi will be in the center of the action, becouse it will host the biggest winter event on the world, Winter Olympic Games.
You don't need Photoshop or some other advanced piece of software to resize a large number of images at once. You can use Microsoft Office Picture Manager which is part of the Office suite.