Mystery Photo - Caterpillar Eggs

I spotted this for the first time this morning... Can you identify what it is? :-)

Thanks to everyone who guessed and congratulations to Sparkle and Sheila who correctly identified caterpillar eggs. Also well done to everyone who mentioned eggs, close but not quite close enough! :-P

Chalk Arch at Selwicks Bay

The chalk cliffs at Selwicks Bay, Flamborough Head contain several sea caves, rock arches and other formations. The rock arch formed when a sea cave collapsed. Eventually the top of the arch will fall away, leaving a chalk stack.