![](https://www.interez.sk/wp-content/uploads/2021/11/hexanchus-griseus.jpeg?x20750)
žralok sivý. Foto: Operation Deep Scope 2005 Expedition: NOAA Office of Ocean Exploration; Harbor Branch Oceanographic Institution, Public domain, via Wikimedia Commons
![](https://www.interez.sk/wp-content/uploads/2021/11/sander-crombach-6b3r1wajpbi-unsplash.jpg?x20750)
Ilustračná foto: Unsplash (Sander Crombach)
![](https://www.interez.sk/wp-content/uploads/2021/11/squalus-acanthias2.jpeg?x20750)
Žralok squalus. Foto: See page for author, Public domain, via Wikimedia Commons
![](https://www.interez.sk/wp-content/uploads/2021/11/hexanchus-griseus.jpeg?x20750)
žralok sivý. Foto: Operation Deep Scope 2005 Expedition: NOAA Office of Ocean Exploration; Harbor Branch Oceanographic Institution, Public domain, via Wikimedia Commons