Female Catastrophic Molting Time

Many of the females of all ages are now lounging around our beaches as their old fur along with its skin peels off to reveal their nice new silver gray fur ready for use.

This is probably the only time of year that the females actually club together without too much bickering. For some reason, these newly impregnated females nearly always seem at odds with elephant seals of all ages and of both sexes. Maybe it has something to do with that they're either being mounted and/or pregnant for most of their adult lives !?

Click here to see video of some of our current female visitors.

Along with the females, you can see youngsters born a couple or three years ago as well as few weaners from this recent birthing season.

As we head into May, more of the young males will be showing up to take their turn at the catastrophic molt. These are the fun ones to watch as they're almost constantly on the move and participating in numerous hierarchical physical bouts.

Click here for more photos of the current visitors.

Molting and Sparring Adult Male Elephant Seals

The hugely popular giant seafaring mammals, the adult male elephant seals, are once again coming to the local beaches on the central coast of California. Reaching 15 or so feet in length and weighing in the neighborhood of 3+ tons, they are convening here mainly to rest and molt, with the inevitable bouts of dominance sparring interrupting their noisy snores and snorts.

Click here to see video of these molting giants.

However, these giants of the sea do not seem as well-fed this year as the recently departed adult females. For many, their skin seems too big and wrinkled instead of being plumped out by several inches of insulating blubber. Since many appear to be on the skinnier side, they'll have to broaden their foraging hunt after completing their molting in order to be at full strength and weight for the intense fights for the rights to a piece of beach territory in December.

In contrast, some of the well-fed younger adult males can be seen eagerly sparring on land or in the water amongst these currently rather lethargic heavy-weight leviathans.

Here and there, an early-arrived yearling can already be spotted snoozing on the sandy beaches.

Click here to see plenty of photos of large males doing what they do best.

Now for the Bigger Males

With the pregnant adult females apparently loathe to depart on their BIG summer foraging trip, many of the sub-adult male elephant seals have been reluctant to come ashore and get picked upon by these queens of the marine mammals. Instead, they have mainly chosen to stay just off-shore bottling and lazily swimming around in the shallow bays. The few males that did venture ashore tried to hide quietly amongst the restlessly quarreling moms without getting booted off again. ( Adult female elephant seals are infamous for picking on each other and keeping unwanted suitors/intruders from getting too chummy.)

Click here for photos of females.

However, as June draws to close for this year, and with these ruling females gone, the favoritized beaches are beginning to fill up with bigger males.

Click here for photos of sub-adult males and juveniles.

As we move through the summer months of July and August, we should see quite a few of the large male elephant seals taking up month-long residencies on the beaches of the central coast of California so they can go through their catastrophic molt and get some shore rest.

Click here to see video of adolescent males ganging up on an intruding male.

Currently, dominancy fighting is not at a premium as the newly arrived males are getting some R&R after their first long feeding trip of the year. But, as they recoup, no doubt their usual squabbling and hierarchal clashes will commence once again.

Click here for photos of bigger males.

Mostly Adult Females

Almost all of the favored elephant seal beaches are so packed with the big adult female elephant seals that it's hard to spot any sand. Most of these pregnant female seals have finished molting for this season but are still resting up on the beaches before heading back out to sea to feed.

There are still a few juveniles also hanging around, but all this year's weaners have finally left on their first BIG foraging voyage.

The next group to come in mass to molt will be the sub-adult males. With so many adult females still enjoying our coast, beach space will be at a premium as the guys start to come ashore in larger numbers. In fact, one can already see and hear a few of these young males both in the water and on land.

Click here for more photos. ( Because we've had so many unusually calm days, many of the photos show the elephant seals doing their thing under water for a change. )

Click here for video of females relaxing in the tidal surges.

Click here for video of young male having a relaxing time in a bay.

Click here to see video of young males trying to make decisions.

Molting Time for Females and Juveniles

The first group of elephant seals to return to the beaches on the central coast of California to start their molt are the adult females. Pregnant once more, and having regained their lost weight during the recent birthing/mating season, they have once again taken over their favorite beaches in order to rest and shed their old fur, which has become tan-colored over time. Some of these adult females are really huge...close to 10 feet in length and looking rotundly healthy after only having been absent for a month. It's hard to believe that they left about a month ago looking thin and worn out.

The catastrophic molt, as it's called, takes close to one month to complete. During this time the 'old' fur and attached skin comes off in large pieces so that the new sleek gray fur can be exposed and readied for 'duty'. During this changeover, the elephant seals seem more sensitive to heat than otherwise and can be seen lying either at the water's edge or swimming in the cool Pacific waters if the mercury starts to rise.

At this time, since there are no large males around, the adult females are the dominant ones on the beaches. Amongst these constantly bickering females, one can also see molting juveniles of both sexes and quite a few newly-arrived weaners that are beach-hopping their way to the hunting grounds.

One- and two-year-old elephant seals sometimes suffer from scabby molt, believed to be a skin disease rather than a true molt. ( Click here to read more. )

As April proceeds, sub-adult males will start to come ashore to start the molting period.

Click here for current photos.

Weaners Galore

Since the threat of a far-reaching tsunami caused by the devastating 9.0 earthquake in Japan has finally dissipated, one would think that the elephant seals camped out on the shores of the central coast would continue their regular business.

Most of the current elephant seal population is composed of this year's pups, who recently matured into weaners. The majority of these have gathered together in oversized weaner pods on just a couple of the local beaches in the Piedras Blancas area instead of being dottted along the coast as in previous years.

An observer might be amazed as the members of the weaner pod at the north end of the Piedras Blancas viewing center seem to be unusually active, feisty and agitated - biting and snapping at anything and everything that's in their vicinity rather than mainly sleeping away their days, conserving energy. Extreme backbends also seem to be the order of the day as many of these maybe not-so-small twirling dervishes are making the most of a pool formed through a combination of high tides and water deposited from a large agricultural drainage pipe.

Click here to see video of weaners in pool.

Another interesting point is the amount of large adult male elephant seals that are still present. One could say that they're there to protect the weaners. But are they ? Scientists believe that the adult males are only interested in mature females. However, my observations of the adult males would seem to point to their protective nature not only towards females but also towards the pups and/or the weaners.

So far, only a handful of the females have returned to the beaches to rest and start their catastrophic molt. Additionally, on some of the small pocket beaches, a few well-fed young males have already hauled out to begin their molting period.

Click here to see more photos.

Unusual Amount of Adult Female Elephant Seals

Strangely enough, as we near the middle of May, the amount of adult female elephant seals ashore to molt still seems to be increasing.

( Unconfirmed sources claim that there are many more adult females on the beaches at the Piedras Blancas elephant seal colony this year than in previous years.)

Maybe due to the extreme overcrowding on the part of the adult females, the remaining few of this year's weaners can only be observed on the small pocket beaches that the adult females have chosen not to occupy.

Another point of interest is that the vast majority of juvenile elephant seals also appear to be female this year instead of having about a 50-50 mix.

True, a few juvenile males can be seen mock sparring on the beaches and in the shallows. A couple of sub-adult males can also be found roaring on the beach or in the shallows.

If I were a scientist, I would be wondering why there not only seems to be far fewer juvenile male elephant seals to date this spring, but why the usual male competetiveness also seems to be absent.

Click here to see more photos.

Click here to visit my elephant seal website.

Catastrophic Molt

Prime beach space is beginning to be hard to find as more and more large elephant seals work their way up onto the beaches to join the already present weaners. These weaners, who are further honing their swimming, diving, and foraging skills now have to try to stay out of the way of the older elephant seals as hierarchy rules.

Over the last couple of weeks both adult female elephant seals as well as juvenile males ( juvenile male = 1-4 years old ) and juvenile females ( juvenile female = 1-2 years old ) have been crowding onto the beaches of central California to begin their annual catastrophic molt. ( The sub-adult males and adult males will come a little later on for their turn.)

What is a catastrophic molt ? Over a period of many months, elephant seal fur changes color from a gray to dark brown to a lighter brownish hue or even a pale tan.

Maybe this change in fur pigment indicates that the fur becomes less oily over time causing the elephant seal to shed its fur and attached skin about once a year. Also, maybe because the elephant seal spends so much of its life in the salty ocean water, its fur simply has to be replenished as the salts dry it out. Another factor might be that as the elephant seal expands both in length and in girth, it needs to shed its outer layer much like a snake does.

The fur and skin peel off in both larger and smaller pieces revealing the fresh new layer of gray fur below. ( See extra photos.)

During the month this molt takes to complete, scientists believe the molting elephant seals eat nothing even though they often enter the ocean during this period.

Click here to see more photos.

Click here to visit my elephant seal website.

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