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  • A juvenile tufted gray langur sitting in the nook of a tree. This is the Semnopithecus priam thersites subspecies, which is listed as Endangered on the IUCN Red List.
    tufted-gray-langur-juvenile-semnopit...tif
  • This is an adult female sperm whale (Physeter macrocephalus) raising her fluke just prior to diving down to forage for food.
    sperm-whale-fluke-sri-lanka-201703-2...tif
  • Bryde's whale (Balaenoptera edeni) in blue water, photographed in Trincomalee, Sri Lanka
    brydes-whale-balaenoptera-edeni-sri-...tif
  • Dorsal fin of a large Bryde's whale (Balaenoptera edeni) exhibiting the characteristic hooked shape of this species. This particular whale has a small notch on the trailing edge of its dorsal fin, making it easy to recognize. Note also the injury on the dorsal surface. The whale was also missing the left tip of its fluke, perhaps from an attack earlier in its life.
    brydes-whale-balaenoptera-edeni-trin...tif
  • Mature Bryde's whale (Balaenoptera edeni) diving down to forage for food. This whale had an injury to the left lobe of its fluke, perhaps resulting from an attack when it was younger. The whale also had a prominent notch in the trailing edge of its dorsal fin, and an injury on its dorsal surface on the left side of its dorsal fin. These markings make it easy to identify this whale.
    brydes-whale-injured-fluke-balaenopt...tif
  • Whereas baleen whales have two exterior nostrils (called blowholes), sperm whales (Physeter macrocephalus) have a single blowhole on the left side of their heads. The other nostril has been modified into an internal organ called the phonic lip that produces the clicks and other sounds that these whales use for communication and echolocation.
    sperm-whale-blowhole-201703-1222.tif
  • This is a small social unit, or perhaps part of a social unit, of sperm whales (Physeter macrocephalus). There were three young whales in the group. Pictured here is one of the young whales, around seven to eight meters in length, taking an interest in me, with the other members of the social unit visible in the background.
    sperm-whale-social-unit-inquisitive-...tif
  • Three sperm whales (Physeter macrocephalus) lined up in formation while resting between foraging dives
    sperm-whales-formation-while-resting...tif
  • This is an adult female sperm whale (Physeter macrocephalus) slapping the surface of the ocean with her fluke. She reacted immediately when a person entered the water and tried to approach her and other members of her social unit. The whales were resting, and it was clear that they did not wish to be disturbed. Worse still, other people subsequently entered the water as well. Ecotourism has been a catchall term that connotes a positive activity, but interactions with wild animals like this need to be regulated with proper enforcement by knowledgeable people. Otherwise ecotourism can be a damaging activity, sacrificing the welfare of wildlife for the sake of profit.
    sperm-whale-slapping-fluke-in-respon...tif
  • Changeable lizard (Calotes versicolor) perched on a rock. This lizard is an insectivore, measuring about 10cm when mature. They have been known to eat small rodents and other lizards as well. This species is widely distributed, found throughout the Asia-Pacific region.
    changeable-lizard-calotes-versicolor...tif
  • Fluke-on view of a group of sperm whales (Physeter macrocephalus) socializing. The whales are clustered together head-first, with lots of bio-sonar clicking and rubbing together of their heads and bodies. Mass defecation is often a part of such social activity, with the defecation becoming thick enough to obscure the whales from view, as is the case here. Note the shedding of skin, which is also characteristic of sperm whale socialization.
    sperm-whales-socializing-mass-defeca...tif
  • This is an adult female sperm whale (Physeter macrocephalus) at the ocean surface, with other members of her social unit visible in the background.
    sperm-whale-physeter-macrocephalus-o...tif
  • Discarded plastic toy ball floating in the middle of the ocean. Even innocent toys can become plastic waste that poisons the oceans.
    garbage-sri-lanka-201303-0472.tif
  • Underwater view of a footprint left on the ocean surface by the fluke of a swimming adult female sperm whale (Physeter macrocephalus)
    sperm-whale-footprint-underwater-vie...tif
  • Close-up view of defecation by an adult female sperm whale (Physeter macrocephalus). Defecation at the surface is routine behavior for sperm whales. Defecation is an indication that the whale has been feeding successfully.
    sperm-whale-defecation-close-up-2016...tif
  • Pictured here are twelve members of a social unit of sperm whales (Physeter macrocephalus) moving slowly along at a depth of 20m for the whale in the foreground. These whales, most likely all adult females, were relaxed and resting, as evidenced by the closed eye of the whale in the foreground, and the relaxed body language of all the animals. Tactile contact among social unit members, as visible here, is common during group activity.
    sperm-whale-social-unit-resting-2017...tif
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