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The first known filter feeder is a large shrimp-like creature called Tamisiocaris borealis. The feather-like structures on its head were used to rake plankton from the sea.
Photo

The First Filter Feeder

Today, filter feeders like clams, sponges, krill, baleen whales, fishes, and many...
This mangrove island in Belize was cleared and dredged to create sand beaches.
Photo

Mangrove Island Clear-Cut for Tourism

This mangrove island in the Pelican Cays, Belize, was clear-cut and filled with...
These Smithsonian field stations enable scientists worldwide to conduct long-term studies on mangrove ecosystems.
Photo

Description of Smithsonian Field Stations

These Smithsonian field stations enable scientists worldwide to conduct long-term...
A map showing the global range of mangroves.
Photo

Mangroves Range

A map that shows the location of mangroves throughout the world. They are mainly...
A hippopotamus-like creature swims underwater
Article

Flippers or Feet? An Extinct Mammal May Have Been Replaced By Today's Sea Cows

In the seagrass beds and kelp forests of the Oligocene-Miocene transition, nearly...
August 2016
Fossil Whale Digsite at Cerro Ballena, Chile
Article

The Whale Graveyard Whodunit

One of the ocean's tiniest organisms often does the most harm. Microscopic algae...
March 2014
An illustration of a recently discovered species of Monodontid, Bohaskaia monodontoides, and its beluga and narwhale relatives
Personal Perspectives

Smithsonian Scientists Describe a 'New' Fossil Whale

Monodontids, the group of whales that includes the belugas and narwhals swimming...
March 2012
Offshore Peru, during the Eocene (~56-34 million years ago), showing two archaeocetes (ancient whales): Ocucajea picklingi and Supayacetus muizon.
Photo

Eocene Whales and Penguins Off the Coast of Peru

Offshore Peru, during the Eocene (~56-34 million years ago), showing three...
Smithsonian Scientists Dig a Trench Around a squalodontid Skull
Personal Perspectives

Expedition to Excavate a Fossil Whale

My graduate student Jorge and I are departing today for Panama, to excavate a...
June 2011
Mangroves are being decimated by human development, like this shrimp farm in Belize.
Photo

Former Mangrove Forest

This shrimp farm in southern Belize is just one example of how mangroves worldwide...
Two skulls belonging to extinct marine mammal herbivores used in the new study, both from the Smithsonian’s collections.

When Did Today’s Whales Get So Big?

More recently than you might think, say scientists who scoured the fossil...
July 2016
These Smithsonian field stations enable scientists worldwide to conduct long-term studies on mangrove ecosystems.
Article

Smithsonian Research Stations

Smithsonian scientists and their colleagues are investigating important questions...
November 2009

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