A zoo in Costa Rica has reported the first case of a crocodile who impregnated herself, birthing a foetus 99.9 per cent genetically identical to her. Watch the full episode at www.skynews.com.au/flash | Sky News Australia

Crocodile eyes are masterfully adapted for both hunting and survival. Positioned high on their heads, they allow the animal to remain almost completely submerged while keeping watch above the water’s surface. Their vertical slit pupils adjust to changing light—dilating wide at night for enhanced vision in the dark and narrowing tightly under bright sunlight. Behind the retina lies a special layer called the tapetum lucidum, which reflects light back through the eye, giving crocodiles exceptional