Although whales are rare in the Mediterranean, whalers once docked at Joppa. A fish known to follow ships in the Mediterranean and to eat whatever is thrown overboard is the great white shark.
किन्तु, योना के विषय में परमेश्‍वर ने एक “बड़ी मछली ” का उपयोग किया, शायद जो आधुनिक विज्ञान को एक अज्ञात प्राणी है ।