We are millions - Dense settlement of young mussels Mytilus edulis
We are millions – Dense settlement of young mussels Mytilus edulis

Mussels can colonise hard surfaces quite rapidly and completely.

 

Taking care - Antarctic star fish and offspring
Taking care – Antarctic star fish and offspring

This starfish – as many other species – protects her offspring by carrying them around until they are big enough to life on their own.

 

A messenger from ancient times - 3 Mill year old shell of Arctica islandica
A messenger from ancient times – 3 Mill year old shell of Arctica islandica

Fossil shell of an Arctica islandica clam that lived about 3 Million years ago (recovered from Tjörnes Beds, Iceland). There are petrified sandy sediments in the lower part of the shell and carbonate crystals grown during petrification in the upper part. This shell still carries information on Pliocene environmental conditions.

 

The tree of the sea - Arctica islandica can live for centuries
The tree of the sea – Arctica islandica can live for centuries

The bivalve Arctica islandica can attain up to 500 years of age, and around 100 years are quite common. As in trees, the shell forms one growth band each year.

 

Heat, ice & life - Penguins at Saunders Island
Heat, ice & life – Penguins at Saunders Island

Heat, ice and life:  The remote Saunders Island (57°47’ South, 26°27’ West, South Sandwich Islands) is an active volcano covered by ice and snow. Nevertheless, there is life:  each little black dot on this photo is a chinstrap penguin! (Photo taken during  Polarstern expedition ANT XIX/5 in 2002)

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s