Imagine doing a major road trip for 5,000 to 7,000 miles. Now imagine making that trip 11 months pregnant. Now imagine making the return trip of 5,000 to 7,000 miles just three months after arriving and giving birth. Now imagine doing these two major road trips every year of your life until the day you… [read more]
Archives for January 2010
5 fascinating marine mammal behaviors
1. Sperm whales hang out in groups of about 10 females with their calves. If a killer whale attacks, calves will be surrounded by the adults for protection. Sperm whales also use this strategy to protect injured whales. 2. Some dolphins coordinate their feeding by surrounding a school of fish in a circle. Then the dolphins… [read more]
Behavior in marine mammals
As fellow mammals, marine mammals spend a lot of time doing the same things we do. Shopping or hunting for food, eating, finding a mate, having sex, raising young, traveling and escaping bad guys are all activities occupying the time of marine mammals across the globe. But we have adapted to solid ground under our… [read more]
Bearded Seals: singing for love
As Valentine’s Day fast approaches, some of the men out there may want to take a few notes on how male bearded seals attract the ladies. These cumbersome looking marine mammals actually woo their women with song! According to the Encyclopedia of Marine Mammals, the songs of the bearded seal can make the heart ache.… [read more]
Bearded Seals: sweet whiskers
The bearded seal or Erignathus barbatus is the Santa Claus of seals with fabulously long whiskers that curl a bit when dry. And how fitting since they live not far from the North Pole at the edge of the sea ice that extends in all directions from this northern most point. But the whiskers of… [read more]
5 interesting beaked whale tidbits
1. Beaked whales live in the open ocean and spend their time deep diving for squid. 2. Most beaked whales have two throat grooves in the shaped of a V. 3. The family Ziphiidae (scientific name for the beaked whale family) has been around since the Miocene epoch, about 23 to 5 million years ago. 4.… [read more]
Beaked Whales: an introduction
The “B” section of the Encyclopedia of Marine Mammals has now taken us to the beaked whales, the toothed-whales belonging to the family Ziphiidae. Not as much is known about these whales that prefer to hang out in the deep ocean diving for squid. In fact, the 21 species of beaked whales have had so… [read more]
Basilosaurids: the closest relatives of modern whales
The Encyclopedia of Marine Mammals has offered up another interesting tale, that of the basilosaurids, a now extinct family of whales. Like all ancient whales, basilosaurids are a type of archaeocetes, the common name for the oldest whales that now only exist in fossil form. (Check out my previous post on archaeocetes if you want… [read more]
Barnacles: living on a whale
Barnacles seem to have quite the life indeed. These crustaceans represent a diverse group that includes more than 1,000 species. Some of these barnacles have adapted to living on marine mammals and tend to hang out on some of the baleen whales. My guess is that it’s easier to live and stay attached to a… [read more]
Sanderlings: always on the run
The sanderlings or Calidris alba are the cute little birds obsessively running in and out with the tide. Sanderlings are pretty small, averaging 7.5 inches in length and weighing about 2.5 ounces. Females and males look alike with soft black eyes, dark black legs and feet, light gray feathers on the back and head, bright… [read more]