2.
The marine iguana, which eats algae in the sea, is only found in the Galapagos Islands.
3.
The marine iguana eating algae in the sea is only found in the Galapagos Islands.
algae (N) – a very simple plant without stems or leaves that grows in or near ocean water
Galapagos Islands – a group of islands in the east Pacific Ocean which belong to Ecuador. They were visited by Charles Darwin in 1835.
unique (Adj) – the only one of its kind