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First Day
One-day-old red handfish (Thymichthys politus) hatchlings. These fish are newborns; so they still display a substantial yolk sac. This structure contains nutrients that provide the fish with a secure food source during its development in the egg and its first days after emerging. The yolk sac will shrink and disappear as the fish continues growing and feeding from it.

Photograph: Armando Ochoa Aguilar

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#fish

eventually, the hatchlings will start to look around for other food sources such as small amphipods. A macro, close-up photograph capturing two tiny, one-day-old red handfish (Thymichthys politus) hatchlings side-by-side against a pitch-black background. The newborn fish are bright amber-orange and highly translucent. The hatchling on the left faces right, propped up on its miniature, hand-like pectoral fins. The hatchling on the left faces forward, showing its tiny dark eyes. Both newborns display a very large, bulbous, semi-translucent yolk sac beneath their bellies, which acts as their secure food source during their first days of life. The smooth surface they rest on creates a faint, blurry reflection of their vibrant orange bodies beneath them, and a soft, out-of-focus golden shape is visible in the far upper-left background.
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A Ghostly Chimaera
An Australian ghostshark (Callorhinchus milii) scours the seagrass beds of the river Derwent for an easy meal. This is not actually a shark but a ‘chimaera’, a group of cartilaginous fish that branched off from the sharks and rays nearly 400m years ago. Members of this species use their plough-shaped snouts to detect prey hidden in the sand.
Photograph: Daniel van Duinkerken

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#fish
#Chimaera

An Australian ghostshark (Callorhinchus milii) scours the seagrass beds of the river Derwent.
#photography #fish #chimaera

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