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  • Humpback whales (Megaptera novaeangliae kuzira) engaged in bubble-net feeding, highlighted by the warm light of a late summer evening
    humpback-whales-bubble-net-feeding-a...tif
  • Close-up of a few of the humpback whales (Megaptera novaeangliae) comprising a group of whales engaged in cooperative bubble-net feeding. Photographed in Chatham Strait, near Juneau, Alaska,
    humpback-whales-bubble-net-feeding-c...tif
  • Group of humpback whales (Megaptera novaeangliae) emerging from the water while engaged in cooperative bubble-net feeding. The whale with its mouth open in the middle of the photograph is the leader/ coordinator, always appearing in the middle of the group. Photographed in Chatham Strait, near Juneau, Alaska.
    humpback-whales-bubble-net-feeding-j...tif
  • Humpback whales (Megaptera novaeangliae) engaged in cooperative bubble-net feeding in Chatham Strait, Alaska.
    humpback-whales-cooperative-bubble-n...tif
  • This North Pacific humpback whale (Megaptera novaeangliae kuzira) was part of a group of whales that engaged in cooperative bubble-net feeding for several days. One morning, this whale breached multiple times, prompting the other whales in the group to breach and pectoral slap for an extended period of time, as they ended their social foraging behavior and the whales went their separate ways.
    humpback-whale-breaching-alaska-2018...tif
  • Humpback whales (Megaptera novaeangliae) rising up out of the water after creating a bubble-net to herd and catch herring in a cooperative manner. Photographed in Alaska.
    humpback-whales-bubble-net-feeding-a...tif
  • North Pacific humpback whales (Megaptera novaeangliae kuzira) engaged in cooperative bubble-net feeding to capture herring, with sea gulls taking advantage of the whales’ hard work. The whale with its mouth facing toward the camera is the lead individual.
    humpback-whales-bubble-net-feeding-a...tif
  • Humpback whales (Megaptera novaeangliae kuzira) bubble-net feeding in Chatham Strait, Alaska, in front of a dinghy with tourists enjoying the show.
    humpback-whales-bubble-net-feeding-a...tif
  • Passengers aboard a recreational fishing boat enjoying the show put on by humpback whales (Megaptera novaeangliae) bubble-net feeding in Chatham Strait, Alaska.
    humpback-whales-bubble-net-feeding-c...tif
  • Humpback whales (Megaptera novaeangliae) bubble-net feeding in Chatham Strait, Alaska on a sunny day with lush greenery in the background.
    bubble-net-feeding-humpback-whales-a...tif
  • Humpback whales (Megaptera novaeangliae) engaged in bubble net feeding, two with their mouths wide open. The low light of a summer evening in Alaska provides dramatic backlighting for this scene.
    humpback-whales-bubble-net-feeding-a...tif
  • Humpback whales (Megaptera novaeangliae) emerging from the water in perfect formation while engaged in social foraging, often referred to as bubble net feeding.
    humpback-whales-bubble-net-feeding-a...tif
  • Humpback whales (Megaptera novaeangliae) bubble net feeding in the warm light of late evening during summer in Alaska. The baleen in the mouth of the lead whale is clearly visible from this angle.
    humpback-whales-bubble-net-feeding-a...tif
  • A group of humpback whales (Megaptera novaeangliae) engaged in cooperative foraging behavior commonly referred to as bubble net feeding. The whales find and encircle schools of fish, blowing bubbles as they do so to create a net around the fish and drive them to the surface. The whales then surround the fish and charge up in unison through their prey with mouths wide open. By working together, the whales are able to herd large schools of fish that would be more challenging for a single whale to capture. Photograph taken in Chatham Strait, Alaska.
    humpback-whales-bubble-net-feedin-ch...tif
  • Humpback whales (Megaptera novaeangliae) engaged in bubble net feeding, snow-capped mountains in the background.
    humpback-whales-bubble-net-feeding-a...tif
  • Humpback whales (Megaptera novaeangliae) engaged in bubble net feeding during the summer in Alaska.
    humpback-whales-bubble-net-feeding-a...tif
  • Humpback whales (Megaptera novaeangliae kuzira) bubble net feeding in the warm light of late evening during summer in Alaska. The baleen in the mouth of the lead whale is clearly visible from this angle.
    humpback-whales-bubble-net-feeding-a...tif
  • Humpback whales (Megaptera novaeangliae) engaged in bubble net feeding in the warm light of a sunny summer evening in Alaska
    hunpback-whales-bubble-net-feeding-a...tif
  • Humpback whales (Megaptera novaeangliae) engaged in bubble net feeding.
    humpback-whales-bubble-net-feeding-a...tif
  • Clear view of baleen in the mouth of a humpback whale (Megaptera novaeangliae) engaged in bubble net feeding in Alaska. Also visible on the lower jaw of another whale are Coronula diadema hard acorn barnacles and Conchoderma auritum gooseneck barnacles.
    humpback-whales-bubble-net-feeding-a...tif
  • Humpback whale (Megaptera novaeangliae) engaged in bubble net feeding near a tourist vessel in Alaska.
    humpback-whales-bubble-net-feeding-a...tif
  • A pair of humpback whales (Megaptera novaeangliae) diving in between group bubble net feeding, with a charter vessel visible between the flukes. Visible on the corners of the fluke of the whale on the left are Coronula diadema barnacles, which only grow on humpback whales. Hanging off those hard barnacles are Conchoderma auritum, a gooseneck barnacle that only appears on Coronula diadema barnacles.
    humpback-whale-flukes-alaska-201607-...tif
  • This North Pacific humpback whale (Megaptera novaeangliae kuzira) was part of a group of whales that engaged in cooperative bubble-net feeding for several days. One morning, this whale breached multiple times, prompting the other whales in the group to breach and pectoral slap for an extended period of time, as they ended their social foraging behavior and the whales went their separate ways. The weather was unusually clear, providing a view of the Fairweather Range of mountains in the background.
    humpback-whale-breaching-fairweather...tif
  • The rostrum of a humpback whale (Megaptera novaeangliae) emerging from the water. This whale was part of a group of humpback whales engaged in cooperative bubble-net feeding. Viewing this image at 100%, you can see the tubercles (including single follicles of hair protruding from some of them), an injury to one of the tubercles, and a few whale lice (Cyamus boopis) at the tip of the lower jaw. Note also the barnacles under the jaw, which are humpback whale barnacles (Coronula diadema), that grow only on humpback whales. In addition, growing on the humpback whale barnacles are a type of gooseneck barnacle (Conchoderma auritum), that appear only on humpback whale barnacles.
    humpback-whale-rostrum-tubercles-par...tif
  • This North Pacific humpback whale (Megaptera novaeangliae kuzira) was part of a group of whales that engaged in cooperative bubble-net feeding for several days. One morning, this whale breached multiple times, prompting the other whales in the group to breach and pectoral slap for an extended period of time, as they ended their social foraging behavior and the whales went their separate ways.
    humpback-whale-breaching-alaska-2018...tif
  • Humpback whales (Megaptera novaeangliae) in Chatham Strait, Alaska emerging from the water with their mouths wide open to feed on schools of fish. There are fish, probably herring, visible in the photo. From this angle, there is a clear view of the baleen hanging down from the top of the humpback whales' mouths.
    feeding-humpback-whales-mouths-open-...tif
  • Humpback whale (Megaptera novaeangliae) executing a tail slap during a sunny day in Alaska. This whale was part of a group engaged in bubble net feeding.
    humpback-whale-tail-slap-alaska-2012...tif
  • A humpback whale (Megaptera novaeangliae) that had an unusual dorsal fin, one that was split into three sections. It was not possible to determine whether this split dorsal was present from birth, or whether it was the result of an accident such as a propellor strike. This whale was one of eight or nine that engaged in bubble net feeding together during an overcast day.
    unusual-dorsal-fin-humpback-whale-al...tif
  • Humpback whale (Megaptera novaeangliae) breaching during a break from bubble net feeding. This whale was one of six that were engaged in social foraging.
    humpback-whale-breaching-alaska-2016...tif
  • Humpback whale calf breaching in Alaska. This calf’s mother was part of a large group of whales engaged in bubble net feeding. The calf was left to play while its mother fed. The adult female broke from the group from time to time to spend time with the calf, perhaps to nurse the young whale.
    breaching-humpback-whale-calf-alaska...tif
  • Condensation from the breath of humpback whale (Megaptera novaeangliae), backlit by evening sunlight during the Alaskan summer. This whale was one of a group of six engaged in bubble net feeding.
    humpback-whale-breath-condensation-a...tif
  • A large group of humpback whales breathing together in between periods of cooperative hunting with bubble nets to herd schools of fish together. The whales typically rest like this after each successful hunt.
    humpback-whales-breathing-resting-bu...tif
  • A group of humpback whales engaged in social foraging by herding herring and other fish with bubble nets. The lead whale bursts straight out of the water, while the other whales lunge alongside with their mouths wide open.
    humpback-whales-social-foraging-chat...tif
  • This is a North Pacific humpback whale (Megaptera novaeangliae kuzira) breaching at 9:30PM in Alaska. Warm light from the final minutes of sunlight for the day illuminated the whale and ocean spray in a rainbow of color, reflected in the calm evening water.
    humpback-whale-breaching-at-night-al...tif
  • North Pacific humpback whale (Megaptera novaeangliae kuzira) fluke in the warm light of a late summer evening in Alaska
    humpback-whale-fluke-late-evening-al...tif
  • A group of humpback whales surfacing near a small boat near the shore of Chatham Strait in Alaska, with the condensation of their breaths backlit by the afternoon sun.
    humpback-whales-near-small-boat-chat...tif
  • This is a North Pacific humpback whale (Megaptera novaeangliae kuzira) breaching at 9:30PM in Alaska. Warm light from the final minutes of sunlight for the day illuminated the whale and ocean spray in a rainbow of color, reflected in the calm evening water.
    humpback-whale-breaching-at-night-al...tif
  • This is one of several mature humpback whales engaged in bubble net feeding. The injury marks on its left dorsal surface look like they may be the result of a run-in with the propellor of a boat, perhaps a small vessel. I photographed this same whale in 2016 (see humpback-whale-ship-propellor-injury-alaska-201607-0621.tif) , also participating in a bubble-net feeding group at the time. In 2016, the group with this whale was working the coast between Point Retreat and Funter Bay. In 2018, this whale was with a group feeding in the nearby Icy Strait area, primarily around Pleasant Island and Gustavus.
    humpback-whale-ship-propellor-injury...tif
  • A humpback whale calf (Megaptera novaeangliae) breaching and playing while its mother engaged in bubble-net feeding with a social foraging group of whale nearby. Photographed in Chatham Strait, Alaska.
    playful-humpback-whale-calf-breachin...tif
  • A humpback whale raising its fluke to dive. This whale was part of a group engaged in bubble-net feeding.
    humpback-whale-fluke-alaska-201807-0...tif
  • This humpback whale was part of a bubble-net feeding group in Icy Strait, Alaska. This breach was one of a series of breaches and pectoral slaps that occurred in tandem with the end of social foraging, with the whales going separate ways.
    humpback-whale-breaching-alaska-2018...tif
  • Humpback whale calf (Megaptera novaeangliae) breaching. This calf's mother was among whales engaged in bubble net feeding. The calf did not participate in the social foraging, but tagged along some distance behind. The adult female separated from the group from time to time, perhaps to feed this calf.
    breaching-humpback-whale-calf-chatha...tif
  • This is one of several mature humpback whales engaged in bubble net feeding. The injury marks on its left dorsal surface look like they may be the result of a run-in with the propellor of a boat, perhaps a small vessel.
    humpback-whale-ship-propellor-injury...tif
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