Every year, from January to the end of March, millions of monarch butterflies make a 4000 kilometre migration to breed in El Rosario where the world's largest colony of monarch butterflies are found....

Every year, from January to the end of March, millions of monarch butterflies make a 4000 kilometre migration to breed in El Rosario where the world's largest colony of monarch butterflies are found....

People hug after a group of evacuees from Chernigiv arrive by mini bus at the Central Railway station.

A woman offers help to an older person after a group of evacuees from Chernigiv arrive by mini bus at the Central Railway station.

A woman gathers her bags after a group of evacuees from Chernigiv arrive by mini bus at the Central Railway station.

A woman offers a prayer after a group of evacuees from Chernigiv arrive by mini bus at the Central Railway station.

A woman cries after a group of evacuees from Chernigiv arrive by mini bus at the Central Railway station.

A woman cries after a group of evacuees from Chernigiv arrive by mini bus at the Central Railway station.

Evacuees from Chernigiv arrive by mini bus at the Central Railway station.

People gather together in front of the Donetsk Regional Drama Theatre in Mariupol holding placards declaring that 'Mariupol is Ukraine'.

'Mariupol', spelled out in illuminated lettering, located next to the Donetsk Regional Theatre of Drama prior to the start of the Russian siege of the city.

Anna and Alisha, new best friends, with their family pets. They nd their families have been sleeping in the basement of their building. The Retroville Mall next door was devastingly shelled last night...

Mikhail and Nataliya Moskalenko look out of a broken window at the bombed Retroville Mall. They spent the night of the shelling in the buiding's basement.

Outgoing anti air attack ordinance traces a line through the sky behind a Ukranian flag flying in west Kyiv. The anti misile defence systems have proved quite effective in the skies above Kyiv.

Romanian border police checking documents of Ukranian refugees arriving in Europe.